Aiming for the man to ejaculate as deeply as possible into the woman's vagina. This means that the smallest amount of semen escapes and is retained as close to the cervix (the neck of the uterus) as possible. The woman can try lying on her back with her lower back elevated on a small pillow for around 20-30 minutes.
Standing up or going to the bathroom after sex may pull sperm away from their destination. So, lying on your back for 15 minutes or so after sex may help keep sperm moving in the right direction.
Some experts do recommend staying in bed anywhere from 20 minutes to an hour after intercourse to keep the sperm pooled at the top of the vagina. A woman can put her knees up to accentuate this position, or she can place her feet on the wall with her hips on a small pillow, which works even better.
The bottom line: there's no benefit of semen retention for male fertility. If you're trying to conceive, experts recommend having sex every other day during the female partner's fertile period to optimize chances of pregnant.
Does holding up your legs and hips after sex increase the odds of getting pregnant? No, your position after sex doesn't matter either. There's no scientific evidence that elevating your hips or lying down after sex helps sperm reach the cervix (5).
Frequent male masturbation isn't likely to have much effect on your fertility. Some data shows that optimum semen quality occurs after two to three days of no ejaculation. But other research suggests that men who have normal sperm quality maintain normal sperm motility and concentrations even with daily ejaculation.
Short answer: Yes! Even if sperm and semen come out of the vagina, you may still find yourself pregnant. This is regardless of whether you go or don't go to the bathroom right after sex. The fact is, there's hope that semen leaking out after sex does not hurt your chances of conceiving.
Why does semen leak out of the vagina after sex? The real answer: it has nowhere else to go! At the end of the vaginal canal is the cervix, which essentially blocks the fluid (or anything else) from getting up into the uterus. Because of that, what goes up (or in), must come back down.
If your menstrual cycle lasts 28 days and your period arrives like clockwork, it's likely that you'll ovulate on day 14. That's halfway through your cycle. Your fertile window begins on day 10. You're more likely to get pregnant if you have sex at least every other day between days 10 and 14 of a 28-day cycle.
The researchers concluded that lying down for 15 minutes after intrauterine insemination increases pregnancy rates compared with moving around immediately afterwards. They suggest that “immobilisation for 15 minutes should be offered to all women treated with intrauterine insemination.”
Researchers have found that a protein in the cell membranes of sperm plays a key role in how they find their way to eggs. The PMCA protein may also help explain how egg cells only interact with sperm from the same species. PMCA may even be a target of drug discovery.
Urination: Some people incorrectly believe that urinating after sex can flush out sperm from the vagina. However, as urine comes out of a small hole called the urethra, peeing after sex will not remove sperm from the vagina.
Retrograde ejaculation occurs when semen enters the bladder instead of emerging through the penis during orgasm. Although you still reach sexual climax, you might ejaculate very little or no semen. This is sometimes called a dry orgasm. Retrograde ejaculation isn't harmful, but it can cause male infertility.
You won't run out of sperm cells, no matter how often you ejaculate. A number of studies have looked at semen samples from men who ejaculated several times a day. They found that while the sperm count lowered with each successive sample, it didn't fall beneath what experts consider to be a healthy sperm count.
No evidence suggests blocking sperm can cause harm or negative side effects. Unejaculated sperm is not harmful to the body and does not build up. The body reabsorbs sperm that does not leave through ejaculation. This has no side effects on sex drive or fertility.
No particular sex position has been proven to improve the odds of pregnancy. What may help is to put sperm as close to the cervix -- the canal that connects the vagina and the womb -- as possible. One way to do that is to make sure that the penis goes in deep during intercourse.
Studies show that it takes an average of 15 to 90 minutes for sperm to reach an egg after traveling from the cervix to the fallopian tubes. This time is not fixed, depends largely on the activity and condition of each sperm and the vaginal environment in women.
You're most fertile at the time of ovulation (when an egg is released from your ovaries), which usually occurs 12 to 14 days before your next period starts. This is the time of the month when you're most likely to get pregnant.
A blockage in the male or female reproductive tract can prevent fertilization. Or sperm may be unable to swim through the cervical mucus. And even if sperm do reach an egg, they may not be able to penetrate the egg's covering.
The sperm rapidly swim up and into the cervix, where they can survive in the mucus for up to five days before an egg is released. When the egg is released at ovulation, it is covered in sticky cells, which help the fallopian tube to catch it.
It can take anything from 45 minutes to 12 hours for a sperm to reach your fallopian tubes, which is where conception usually happens. However, sperm can survive inside your body for up to seven days, so conception can happen at any point in the week after unprotected sex, if you're ovulating.
Sexual positions that allow for deep penetration are likely to be the best for conception as they allow the sperm to be deposited as close to the cervix as possible. The missionary position is often recommended for this reason.