Trying To Conceive: Position Doesn't Matter, Timing Does

First comes love and then comes marriage. Then comes baby in a carriage. Ha! If only it were that easy. Here are certain sex position that increases the probability of conceiving.

There’s a large amount of advice about which positions help you conceive. Almost none of it is supported, and the effort is going into the wrong variable.

Position doesn’t affect your chance of conceiving.

Sperm reach the cervix within minutes, and they do it against gravity as a matter of course. No position has been shown to improve the odds: not elevating hips, not a pillow underneath, not staying still afterwards.

Timing is the variable that counts, and it’s the one most couples get wrong.

The fertile window

Conception is possible on about six days of a cycle, and no others.

The five days before ovulation, plus the day of ovulation. That’s the whole window.
Sperm survive up to about five days in fertile cervical mucus, so the days before ovulation count as much as the day itself.
The egg survives 12 to 24 hours after release. After that the window is closed until next cycle.
Ovulation is roughly 14 days before the next period, not 14 days after the last one. In a 35-day cycle that’s day 21, not day 14. That’s where a great many couples miss it entirely.

The simplest approach that works

Sex every two to three days across the cycle. That’s it.

It covers the fertile window without any tracking, without tests, and without turning your relationship into a schedule. That counts for more than it sounds, because the scheduling is where couples most often come unstuck.

If you’d rather track:

Ovulation predictor kits detect the LH surge, which comes 24 to 36 hours before ovulation. The most useful single tool, because it predicts instead of confirming.
Cervical mucus: clear, stretchy and egg-white in texture indicates the fertile days. Free, and more informative than most people expect.
Basal body temperature confirms that ovulation happened after the fact. Good for learning your pattern; no help for timing this month.
Apps estimate from averages. Reasonable if your cycles are regular, frequently wrong if they aren’t. They present a guess with more confidence than it deserves.

Things that don’t help

Lying still with hips elevated afterwards. No evidence. Not harmful, so do it if you like it.
Saving up sperm by abstaining for a week. Frequent ejaculation doesn’t deplete anything meaningful, and long abstinence can reduce motility.
Timing sex to conceive a particular sex. Not supported.
Douching afterwards: actively unhelpful, and it disturbs the vaginal environment.
Most lubricants. Many common lubricants impair sperm motility. Use a fertility-friendly one, or none.

What does improve the odds

Both of you

Stop smoking. It affects egg quality and sperm quality measurably.
Weight counts in both directions, and for both partners.
Reduce alcohol.
Review medications with a doctor. Some affect fertility on either side.

Him

Heat reduces sperm production. Saunas, hot baths and laptops on the lap are best avoided while trying.
Sperm take around three months to develop, so changes made now show up in a test a quarter later, not next week.

Her

Folic acid, 400mcg, starting at least a month before conceiving. The neural tube closes by about day 28, before most women know they’re pregnant.
Check rubella and chickenpox immunity before trying, since those vaccines can’t be given in pregnancy.
Very irregular or absent periods need looking into rather than working around.

When to get help

After 12 months of trying, or 6 months if you’re 35 or over
Straight away with irregular or absent periods, known PCOS or endometriosis, previous pelvic surgery or infection, or two or more miscarriages
Get the semen analysis first. Male factors account for close to half of all cases, and it’s the cheapest and quickest test in the entire workup. Yet it’s routinely done after months of investigating the woman

One more thing

Trying to conceive can turn sex into a task with a deadline attached, and that does real damage to a relationship over months. Every-two-to-three-days is recommended partly because it works and partly because it’s sustainable: a plan that removes tracking, testing and the sense of a monthly examination.

Say out loud that this is happening if it is. It’s extremely common and almost never discussed.

Frequently asked questions

Do certain sex positions help you conceive?

No. Sperm reach the cervix within minutes and do so against gravity routinely. No position has been shown to improve the chance of conception, and neither has elevating the hips or lying still afterwards. Timing is the variable that counts.

When is the fertile window?

The five days before ovulation plus the day of ovulation, about six days in total. Sperm survive up to five days in fertile mucus, while the egg survives only 12 to 24 hours, so the days beforehand count as much as the day itself.

How often should we’ve sex when trying?

Every two to three days across the cycle. That covers the fertile window without tracking or testing, and it’s far more sustainable than scheduling around ovulation. Abstaining to “save up” doesn’t help and long abstinence can reduce motility.

How do I know when I’m ovulating?

Ovulation predictor kits detect the LH surge 24 to 36 hours beforehand, which makes them the most helpful tool since they predict ahead instead of confirming after. Fertile cervical mucus, clear and stretchy, is free and informative. Basal body temperature only confirms ovulation after it’s happened. Remember that ovulation is about 14 days before the next period, not 14 days after the last one.

Can lubricant affect fertility?

Many common lubricants impair sperm motility. Use a fertility-friendly one, or none.

When should we see a doctor?

After 12 months of trying, or 6 months if the woman is 35 or over. Go straight away with irregular or absent periods, known PCOS or endometriosis, previous pelvic surgery, or two or more miscarriages. Ask for the semen analysis first; male factors account for roughly half of cases and it’s the cheapest and fastest test available.

What to remember

Position doesn’t matter. Timing does.

Sex every two to three days across the whole cycle covers the fertile window without tracking anything, and it’s the version couples can keep up.

Folic acid before, not after. Skip the lubricant or use a fertility-friendly one. And if you’re over 35, the clock to ask for help is six months, not twelve.