Do Stress and Positions Affect Conception? Infertility Myths Fertility Doctors Correct

The pregnancy test sits face down on the bathroom counter while the timer runs. Fourteen months of trying, and somewhere in that stretch the well-meaning advice started arriving: relax and it will happen, put a pillow under your hips, eat the pineapple core, stop thinking about it so much. Each suggestion lands with a small sting, because each one quietly implies the problem is something you are doing wrong.

Fertility is one of the few areas of medicine where folklore still travels faster than evidence. Infertility myths persist partly because conception is private, partly because it is probabilistic (healthy couples fail in most individual cycles), and partly because it is easier to blame a bedroom habit than to sit with uncertainty.

This article walks through the questions fertility specialists field most often, from stress and positions to egg counts and second babies, and sorts what the evidence supports from what it does not. Where the science is genuinely unsettled, we say so.

Why infertility myths spread: the numbers nobody explains

Infertility is common enough that almost everyone knows someone affected, yet rare enough per couple that people search for a personal reason when it happens to them. The World Health Organization estimates that roughly 1 in 6 adults worldwide experiences infertility at some point in their lives (WHO). In the UK, the NHS puts the figure at about 1 in 7 couples who may have difficulty conceiving.

The other number that gets lost is how conception unfolds over time. According to the NHS, around 84 out of every 100 couples who have regular unprotected sex (every 2–3 days) will conceive within a year. Of those who do not, about half will conceive during the second year without any treatment. That means a couple can be entirely healthy and still spend eight, ten or twelve months trying. Months without a positive test are the normal experience for many, not a signal of disaster.

Infertility itself has a clinical definition: the failure to achieve a pregnancy after 12 months or more of regular unprotected sex (WHO). That definition says nothing about whose body is involved, which matters, because one of the oldest infertility myths is that the woman is always the one to be investigated first.

Statistics like these create room for superstition. When a fertile couple finally conceives in month nine after trying a new position, a new food or a new mindset, the change gets the credit. Doctors call this a post hoc error: the thing that came before is assumed to be the cause. Much of the folklore in this article survives on exactly that mechanism, and the antidote is to understand what actually has to happen inside the body for a pregnancy to begin.

Does stress cause infertility? What the evidence actually shows

“Just relax” may be the most common piece of fertility advice ever given, and it is also one of the least supported. Reviewers at the Mayo Clinic and the NHS list stress among factors that can make conception harder, but the mechanism they describe is indirect: stress can lower libido, reduce how often a couple has sex and disrupt sleep and routines, all of which cut down on the number of well-timed opportunities to conceive. That is different from stress switching off ovulation or damaging eggs or sperm.

What about hormones? Severe, prolonged stress can interfere with the hypothalamus, the part of the brain that signals the ovaries when to release an egg. In extreme situations, such as famine, intensive athletic training or serious illness, periods can stop entirely. Ordinary work deadlines, a difficult relationship or the strain of trying to conceive do not reach that threshold in most people. Studies that have tried to link everyday stress scores to pregnancy rates have produced mixed and generally small effects, and none establishes that stress is a primary cause of infertility.

The direction of the arrow also matters. Infertility causes stress far more reliably than stress causes infertility. Telling someone in that position to relax adds guilt on top of grief and can delay the appointment that would actually identify a treatable cause.

None of this means mental health is irrelevant. Counseling and stress-reduction programs are offered in many fertility services because they help people cope with a hard process and stay engaged with treatment. Feeling better is a legitimate goal in its own right. It is simply not the same claim as “stress is stopping you from getting pregnant,” and the two should not be blurred.

Do sex positions or lying down afterward affect conception? How fertilization actually happens

To see why positions do not matter, follow the sperm. After ejaculation, semen pools near the cervix, the narrow opening at the bottom of the uterus. Sperm begin swimming into cervical mucus within minutes, and some reach the fallopian tubes, where fertilization occurs, in under an hour. Gravity plays almost no role in a journey powered by the sperm’s own tail and the muscular contractions of the uterus.

The NHS and Mayo Clinic both state plainly that there is no evidence any particular position improves the chance of pregnancy, and no evidence that lying still, raising the hips or avoiding the bathroom afterward makes a difference. The liquid that runs out after sex is mostly seminal fluid; the sperm capable of fertilizing an egg have already moved on.

Timing, by contrast, matters a great deal. An egg survives roughly 12–24 hours after ovulation, while sperm can live in the reproductive tract for up to about 5 days (NHS). Conception is therefore most likely when sex happens in the days leading up to ovulation. For most couples, the simplest evidence-based approach is sex every 2–3 days throughout the cycle, which the NHS recommends because it removes the pressure of pinpointing a single fertile window.

Two bedroom details do have some support. First, some vaginal lubricants can slow sperm movement in laboratory tests, so people trying to conceive are often advised to check that a product is labeled as sperm-friendly or to ask a pharmacist (Mayo Clinic). Second, female orgasm is not required for conception; the folklore that it “pulls sperm in” has never been shown to change pregnancy rates. Everything else, from positions to pillows, belongs on the myth side of the ledger.

What are some common causes of infertility?

Real causes are less dramatic than folklore and far more treatable. Broadly, infertility comes down to a problem with the egg, the sperm, the meeting point (the fallopian tubes) or the place the embryo must implant (the uterus). In about 1 in 4 couples, no cause is found even after full testing, a situation doctors call unexplained infertility (NHS).

Category	Common examples	What it interferes with
Ovulation disorders	Polycystic ovary syndrome (PCOS), thyroid disease, very low or high body weight, premature ovarian insufficiency	Release of a mature egg each cycle
Tubal damage	Past pelvic infection (often chlamydia or gonorrhea), endometriosis, previous surgery	Egg and sperm meeting; embryo traveling to the uterus
Uterine or cervical factors	Fibroids, polyps, scar tissue, congenital shape differences	Implantation and early growth
Sperm problems	Low count, poor movement, abnormal shape, blockage, hormonal causes, varicocele	Enough healthy sperm reaching the egg
Age-related decline	Fewer and lower-quality eggs; gradual decline in sperm quality	Egg release, fertilization and embryo viability
Unexplained	All standard tests normal	Unknown; roughly 1 in 4 couples (NHS)

PCOS deserves a plain definition, because it is the most common cause of ovulation problems: a hormonal condition in which the ovaries contain many small follicles and do not reliably release an egg. Endometriosis, another frequent culprit, is a condition in which tissue similar to the uterine lining grows outside the uterus and can cause scarring around the tubes and ovaries.

Lifestyle factors sit alongside these medical causes rather than replacing them. Smoking, heavy alcohol use, being significantly underweight or overweight and some medications can all reduce fertility in either partner (NHS, Mayo Clinic). The point of the table is not to prompt self-diagnosis, which only testing can provide, but to show that the real list contains no pillows, positions or personality traits.

Is infertility mostly a woman's problem? The male-factor myth

For most of medical history, a couple’s failure to conceive was assumed to reside in the wife. The data disagree. According to the CDC, a male factor is identified alongside a female factor in about 35% of couples with infertility, and a male factor is the only identifiable cause in roughly 8%. Put together, sperm-related issues contribute in something like 4 out of 10 cases, which is why guidelines from the NHS and others recommend that both partners be assessed from the start.

A semen analysis, the laboratory test that measures sperm count, movement and shape in a single sample, is one of the simplest and least invasive investigations in all of fertility medicine. Skipping it while the female partner undergoes blood tests and scans is a diagnostic error that still happens, often because of embarrassment or the myth that a man who feels healthy must be fertile. Sperm quality has no reliable outward sign; a man can have normal testosterone, normal sex drive and a normal build while producing few or poorly moving sperm.

Common contributors on the male side include a varicocele, an enlarged vein in the scrotum that raises local temperature; hormonal imbalances; past infections; undescended testicles in childhood; certain medicines; smoking; heavy alcohol; and anabolic steroid use (Mayo Clinic). Age plays a role too, though more gradually than in women; sperm quality declines over the decades rather than falling off a cliff.

What about laptops on laps and tight underwear? Prolonged heat exposure, such as frequent hot tubs or saunas, is thought to temporarily reduce sperm production, and Mayo Clinic advises limiting it while trying to conceive. Evidence on underwear style is weak and inconsistent. The takeaway for couples is practical: request the semen analysis early. It answers a question no amount of worrying can.

At what age are 90% of a woman's eggs gone? Age, egg count and what those figures mean

The claim circulates in headlines as though it were a verdict: by 30, a woman has lost 90% of her eggs. The number traces to a mathematical model published in 2010 by researchers who pooled ovarian tissue studies from conception through menopause. Their model estimated that a female fetus carries several million immature eggs mid-pregnancy, that the number falls to roughly 1–2 million at birth, and that by age 30 about 12% of the original reserve remains, dropping to about 3% by age 40 (Wallace and Kelsey, PLoS One 2010, via PubMed).

Read carefully, the figure is less alarming than it sounds. The vast majority of eggs are lost before a girl ever has a period, through a natural process of follicle breakdown that happens whether or not she uses contraception, has children or does anything at all. A woman ovulates roughly 400–500 times across her reproductive life; the rest of the reserve is never used. Having 12% of a starting pool of a million-plus is still tens of thousands of eggs.

What changes with age is quality as much as quantity. The chance that an egg carries a chromosomal error rises steadily through the 30s and sharply after 40, which is why miscarriage rates climb and why fertility declines even in women who still ovulate regularly. Mayo Clinic and the NHS describe fertility as gradually decreasing from the early 30s, with a more noticeable fall after 35.

Two myths follow from misunderstanding the 90% figure. One is that a healthy lifestyle can meaningfully rebuild egg supply; it cannot, because the reserve is fixed at birth. The other is that a woman under 30 can assume she has plenty of time regardless of symptoms. Ovarian reserve varies enormously between individuals, which is why irregular or absent periods deserve evaluation at any age rather than reassurance based on a population average.

Why is it harder to conceive a second baby? Secondary infertility causes

Secondary infertility, defined as difficulty conceiving after previously carrying a pregnancy, catches people off guard because their bodies have already proven they can do this. Yet the CDC and Cleveland Clinic both describe it as common, and the causes are largely the same list that applies to first pregnancies, with a few additions.

Time is the biggest one. If a first child was conceived at 31 and the second attempt starts at 36, both partners are older, egg quality has changed and sperm parameters may have shifted. Body weight, medications, alcohol use and health conditions such as thyroid disease or diabetes may also have changed in the intervening years. A first pregnancy or delivery can itself leave marks: scar tissue inside the uterus after a cesarean or surgical procedure, or infection after birth, can affect implantation or tube function (Cleveland Clinic).

Breastfeeding matters in the short term. Frequent nursing suppresses ovulation through the hormone prolactin, so cycles may be irregular or absent for months; this is a normal physiological pause rather than infertility, though it can blur the picture of how long a couple has really been trying.

The myth that needs correcting is the idea that a previous pregnancy is a lifelong fertility certificate. Fertility is a moving target, not a fixed trait. A practical consequence is that the same thresholds apply: the NHS and CDC advise seeing a doctor after a year of trying, or after six months if the woman is 35 or older, regardless of how easily an earlier pregnancy came. Couples with secondary infertility sometimes wait longer than they should because they assume it will happen eventually, and that delay is the one factor entirely within their control.

Fertility superstitions: pineapple, moon phases and lucky charms

Ask around any fertility support group and the rituals emerge quickly: eating pineapple core after embryo transfer, wearing a particular color, planting a tree, timing sex to the full moon, sleeping with a fertility figurine beneath the bed. Older traditions include Native American and West African fertility carvings, Chinese jade pendants, European wedding-rice customs and the medieval belief that a woman who sat in a chair recently vacated by a pregnant friend would catch her luck.

Pineapple deserves a specific look because it arrived with a scientific-sounding rationale. Pineapple contains bromelain, an enzyme mixture that has mild anti-inflammatory and blood-thinning effects in laboratory studies. No clinical trial has shown that eating pineapple changes implantation or pregnancy rates, and the amount of bromelain absorbed from a few slices is small. Eating it is harmless for most people; expecting it to work is where the myth begins.

Moon-cycle timing rests on the observation that the menstrual cycle averages about 28 days, close to a lunar month. Studies looking for synchrony between lunar phase and ovulation or birth rates have found none of any consistent size. Cycle length varies widely between individuals, from roughly 21 to 35 days in adults (NHS), which alone rules out a shared celestial clock.

Superstitions persist because they give people something to do during a wait that otherwise offers nothing to control, and there is no reason to shame anyone for finding comfort in a ritual. The line specialists draw is practical: a harmless custom is fine, but a ritual should never replace a test, delay an appointment or be sold as a treatment. When a charm costs money and promises results, it has stopped being folklore and become a product.

Do birth control pills, supplements or diets change your fertility?

Three commercial myths circulate constantly, and each contains a grain of truth wrapped in exaggeration.

First, contraception. Hormonal methods such as the combined pill, patch, ring, implant and hormonal IUD work by suppressing ovulation or thickening cervical mucus while they are in use. Once stopped, fertility returns; for most methods, cycles resume within weeks to a few months, though the contraceptive injection can take longer, sometimes up to a year, for ovulation to return (NHS). Long-term use does not deplete eggs or damage the uterus. What contraception can do is mask an underlying problem such as PCOS by producing regular withdrawal bleeds, so irregular cycles appearing after stopping were often there before.

Second, supplements. The one with unambiguous evidence is folic acid, recommended for anyone who could become pregnant because it lowers the risk of neural tube defects in the baby (NIH Office of Dietary Supplements). Its role is to protect early development, not to boost conception. Antioxidant blends, herbal fertility teas and “egg quality” formulations are marketed heavily, but systematic reviews have not established that they improve live birth rates in the general population, and some herbal products interact with fertility medicines. Anyone considering a supplement should mention it to their care team.

Third, diet. Being significantly underweight or overweight can disrupt ovulation and sperm production, and correcting this is one of the few lifestyle interventions with reasonable evidence behind it (NHS, Mayo Clinic). Specific “fertility diets” go further than the data allow. A balanced eating pattern, not smoking, limiting alcohol and moderate exercise support fertility in both partners; no single food, from oysters to yams, has been shown to make the difference on its own.

Who is usually offered fertility testing, and who is usually asked to keep trying

Fertility services follow a fairly consistent logic about timing, and knowing it helps couples decide when to make the appointment rather than relying on reassurance or panic.

Most guidelines, including those referenced by the NHS and CDC, advise seeing a doctor after 12 months of regular unprotected sex without pregnancy when the woman is under 35. The threshold shortens to 6 months when she is 35 or older, and many clinicians suggest an earlier conversation from 40 onward, because age-related decline means waiting costs more. These are typical ranges, not rules; a family doctor can offer initial testing at any point if there is reason.

Several situations justify going sooner regardless of how long a couple has been trying (NHS, Mayo Clinic):

• Irregular, very infrequent or absent periods, which suggest ovulation may not be happening.
• Known conditions such as PCOS, endometriosis, previous pelvic infection or ectopic pregnancy.
• Two or more miscarriages.
• A history of cancer treatment, undescended testicles, testicular injury or surgery in the male partner.
• Known genetic conditions in either family.
• Situations where conception requires assistance, such as same-sex couples or single people planning to use donor sperm.

Who is asked to wait? Typically a couple under 35 with regular cycles, no relevant history and fewer than 12 months of trying. The recommendation to continue for now is based on those cumulative conception figures: most such couples will conceive without intervention, and testing too early can generate anxiety and unnecessary procedures. Waiting is a clinical judgment, though, not a dismissal. If the advice to keep trying feels wrong given something the doctor does not know, saying so is exactly the right move.

What fertility testing and treatment actually involve

The first appointment is mostly conversation: cycle history, past pregnancies, contraception, sexual health, medications, weight, smoking, alcohol and how often the couple has sex. Then come tests that map onto the four categories of cause described earlier.

For the female partner, blood tests check whether ovulation is occurring and look at thyroid and other hormone levels. A pelvic ultrasound examines the uterus and ovaries. If tubal damage is suspected, a hysterosalpingogram, an X-ray taken while dye is passed through the tubes, or a laparoscopy, a keyhole operation to look directly inside the pelvis, may follow (NHS). For the male partner, semen analysis is the cornerstone; abnormal results are usually repeated because samples vary, and further hormone tests or a scrotal ultrasound may be added.

Treatment depends entirely on what is found, which is why no one should start anything based on an article. Broad categories include:

• Ovulation induction: medicines in classes such as selective estrogen receptor modulators or aromatase inhibitors encourage the ovary to release an egg. Cycles are typically monitored with scans or blood tests, and the prescribing clinician sets every detail of use.
• Surgery: to remove endometriosis, open blocked tubes, treat fibroids or repair a varicocele.
• Intrauterine insemination (IUI): prepared sperm is placed directly into the uterus around ovulation.
• In vitro fertilization (IVF): eggs are collected after hormonal stimulation, fertilized in a laboratory and an embryo is transferred to the uterus.

Outcomes vary with cause and, above all, with age; the NHS notes that the chance of a live birth per IVF cycle falls steadily through the late 30s and 40s. Every option carries risks, from multiple pregnancy to ovarian hyperstimulation, and every option has alternatives, including continuing to try, using donor eggs or sperm, or choosing not to pursue treatment. Those decisions belong with the couple and their treating team.

What the weeks after a first fertility appointment usually look like

Couples often imagine that seeing a specialist leads straight to treatment. In practice the first phase is investigation, and it follows the calendar of the menstrual cycle rather than the calendar on the wall.

Hormone blood tests are usually timed to specific cycle days: one set early in the cycle to assess ovarian reserve and baseline hormones, another about a week before the expected period to confirm ovulation. Semen analysis can be arranged at any time and results typically return within a couple of weeks; if abnormal, a repeat sample is generally requested roughly 2–3 months later, because sperm take about that long to develop, so a single result reflects conditions from months earlier (Mayo Clinic). Ultrasound is often done early in the cycle when the uterine lining is thin. Tubal testing is scheduled after a period and before ovulation to avoid disturbing an early pregnancy.

Assembling all of this commonly takes 1–3 menstrual cycles, sometimes longer where waiting lists or repeat tests intervene. A follow-up appointment then reviews the whole picture. For many couples, that meeting is when a diagnosis first has a name, or when the phrase “unexplained infertility” is used for the first time.

Emotionally, this stretch is often harder than people expect. Hope rises and falls with each result, and relationships can strain under the scheduling. Cleveland Clinic and Mayo Clinic both recommend building support in early, whether counseling, peer groups or simply agreeing as a couple how much to share with family. The waiting is not wasted time. Investigation is what separates evidence-based treatment from guesswork, and it is the step that finally retires the myths about pillows and pineapple by replacing them with facts about a specific body.

What people often get wrong about infertility myths and facts

Several misconceptions did not fit neatly elsewhere but come up in almost every consultation.

“Infertility means sterile.” It does not. Infertility describes reduced chances over a defined period; most people diagnosed with it can still conceive, either with time or with treatment (Cleveland Clinic).

“If you already have a child, you are fertile.” Fertility changes with age and health, as the section on secondary infertility explained.

“Having sex every day is best.” Daily sex is fine and does not meaningfully lower sperm quality in men with normal counts, but it is not required. Every 2–3 days across the cycle is the NHS recommendation because it covers the fertile window without turning intimacy into a schedule.

“Ovulation always happens on day 14.” That figure assumes a 28-day cycle. Ovulation typically occurs about 14 days before the next period, so in a 35-day cycle it falls around day 21 (NHS). Apps that fix day 14 can mislead.

“Miscarriage is caused by stress, exercise or lifting.” Most early miscarriages result from chromosomal errors in the embryo. Normal activity, moderate exercise and ordinary stress are not established causes (NHS).

“Adopting or relaxing makes people get pregnant.” Everyone knows a story. Those couples were mostly in the group who would have conceived in the second or third year anyway; the adoption or vacation is the post hoc error again.

“Fertility treatment always means twins.” Multiple pregnancy is a recognized risk of some treatments, but modern practice increasingly transfers a single embryo, and rates vary by cause, age and protocol.

“Men have no biological clock.” Sperm quality declines with age, and older paternal age is associated with modestly longer time to conception (Mayo Clinic).

The pattern across all of these is the same: a real fact stretched into a rule.

Questions to ask your care team about infertility

A fertility consultation moves quickly, and people regularly leave having forgotten the thing they most wanted to know. Writing questions down beforehand, and bringing a partner or friend to take notes, turns a rushed appointment into a useful one. The following are drawn from the questions specialists say they wish patients asked more often.

• Based on our history, which tests do you recommend first, and for which of us?
• Will the male partner have a semen analysis at the start, and how is the sample arranged?
• How long is the investigation phase likely to take in our situation, and what determines that?
• What would the results need to show for you to recommend treatment rather than continuing to try?
• If a cause is found, what are all the options, including surgery, medicines, insemination, IVF and doing nothing for now?
• What are the main risks of each option for us specifically, and how are they monitored?
• How does age factor into your advice about how quickly to move?
• Are there lifestyle changes with real evidence behind them that would help in our case, and which popular ones can we ignore?
• I take these medications and supplements; do any of them need review before we proceed?
• If test results are normal but we still have not conceived, what happens next?
• What support is available for the emotional side of this process?
• How do we reach the team between appointments if something worrying happens?

A good care team welcomes these questions and answers them without jargon. If an explanation relies on unnamed products, promises a result or dismisses the male partner’s role, those are reasons to ask for clarification or a second opinion. The decisions about testing and treatment remain with the couple and their clinicians; the goal of asking is to make sure those decisions rest on evidence rather than on the myths this article has tried to retire.

When to call your doctor

Most of fertility care is unhurried, but some symptoms should not wait for the next scheduled appointment, whether or not a couple is currently in treatment. Contact a doctor promptly, or seek urgent care, for any of the following (NHS, Mayo Clinic):

• Severe or one-sided pelvic or abdominal pain, especially with a positive pregnancy test or a missed period, which can indicate an ectopic pregnancy (a pregnancy growing outside the uterus).
• Heavy vaginal bleeding, bleeding with dizziness or fainting, or bleeding after a positive test.
• Fever, chills or foul-smelling discharge, particularly after a procedure such as tubal testing, egg collection or insemination, which may signal infection.
• Rapid abdominal swelling, marked bloating, shortness of breath, nausea and vomiting or reduced urination during or after hormonal stimulation, which can be signs of ovarian hyperstimulation syndrome.
• Sudden, severe testicular pain or swelling in the male partner.
• Chest pain, calf pain or swelling, or difficulty breathing at any point during treatment, which can indicate a blood clot.
• Thoughts of self-harm, or low mood and anxiety that make daily life difficult, which are common during fertility care and deserve support as much as any physical symptom.

Beyond emergencies, the routine reasons to book an appointment bear repeating. See a doctor after 12 months of trying without success, after 6 months if the woman is 35 or older, and sooner at any age if periods are irregular or absent, if either partner has a known condition affecting fertility, or after two or more miscarriages. This article can explain what the evidence shows about infertility myths; only a clinician who has examined and tested you can say what applies to your body. Every decision about testing, treatment or waiting belongs with you and your treating team.

Frequently asked questions

Does stress cause infertility?

Not directly, according to current evidence. Stress can lower libido and reduce how often couples have sex, which cuts down on well-timed opportunities to conceive, but studies have not shown that ordinary stress prevents ovulation or fertilization. Only extreme, prolonged physical stress such as severe undernutrition reliably stops periods. Infertility causes stress far more consistently than the reverse, so support for mental health is worthwhile in its own right.

What are some superstitions about fertility?

Common ones include eating pineapple core after embryo transfer, timing sex to the full moon, raising the hips on a pillow afterward, wearing lucky colors or charms, and sitting in a chair a pregnant friend has just left. None has been shown to change pregnancy rates. Most are harmless and can offer comfort during a stressful wait, but they should never replace a medical appointment or be sold as treatment.

What are some common causes of infertility?

The main groups are ovulation problems such as PCOS and thyroid disease, blocked or damaged fallopian tubes from past infection or endometriosis, uterine conditions like fibroids, and sperm problems including low count or poor movement. Age affects both partners, more sharply in women after 35. In about 1 in 4 couples no cause is identified after full testing, which is called unexplained infertility (NHS).

Why is it harder to conceive a second baby?

Usually because time has passed. Both partners are older, egg and sperm quality may have changed, and weight, medications or new health conditions can affect ovulation and sperm. A previous birth or cesarean can occasionally leave scar tissue, and breastfeeding temporarily suppresses ovulation. The same advice applies as for a first pregnancy: see a doctor after a year of trying, or six months if the woman is 35 or older.

At what age are 90% of a woman's eggs gone?

A 2010 mathematical model estimated that about 12% of the original egg reserve remains at age 30 and about 3% at age 40, which is where the “90% gone by 30” headline comes from. Most of that loss happens before birth and before puberty as part of normal development. Egg quality, not just count, drives the decline in fertility after 35, and reserve varies widely between individuals.

Do sex positions affect the chance of getting pregnant?

No. The NHS and Mayo Clinic both state there is no evidence that any position, or lying still afterward, improves the chance of pregnancy. Sperm begin swimming through cervical mucus within minutes and are not dependent on gravity. Timing matters far more than position: having sex every 2–3 days throughout the cycle covers the fertile window before ovulation without needing to pinpoint a single day.

Does the birth control pill cause infertility?

No. Hormonal contraception suppresses ovulation only while it is being used, and fertility returns after stopping, usually within weeks to a few months for pills, patches, rings, implants and hormonal IUDs. The contraceptive injection can take longer, sometimes up to a year, for ovulation to resume (NHS). Contraception can mask irregular cycles caused by conditions like PCOS, so problems that appear after stopping were often present beforehand.

Is infertility usually the woman's fault?

No. According to the CDC, a male factor is present alongside a female factor in about 35% of couples with infertility and is the sole identifiable cause in about 8%, meaning sperm-related issues contribute in roughly 4 in 10 cases. Guidelines recommend assessing both partners from the outset, starting with a semen analysis for the man, because sperm quality has no reliable outward signs.

How long should we try before seeing a fertility doctor?

Most guidelines advise seeing a doctor after 12 months of regular unprotected sex without pregnancy if the woman is under 35, and after 6 months if she is 35 or older (NHS, CDC). Go sooner at any age if periods are irregular or absent, if either partner has a known condition such as PCOS, endometriosis or a history of testicular problems, or after two or more miscarriages.

Can supplements or a special diet fix infertility?

No supplement or diet has been shown to treat infertility on its own. Folic acid is recommended before and during early pregnancy to protect the baby’s development, not to boost conception (NIH Office of Dietary Supplements). Reaching a healthy weight, not smoking and limiting alcohol have reasonable evidence for supporting fertility in both partners. Herbal fertility products lack proof and can interact with treatment, so mention any you take to your care team.

References

• NHS: Infertility (overview, causes and when to see a GP)
• WHO Fact Sheet: Infertility
• CDC: Infertility Frequently Asked Questions
• Wallace WH, Kelsey TW. Human ovarian reserve from conception to the menopause. PLoS One 2010 (PubMed)

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.