After ejaculation, sperm physiology suggests that about 35% of sperm from semen travels to the cervix. As per research, sperm reaches fallopian tubes in less than a minute. Excess sperm remains in the vagina, which flows out or leaks out after a few hours or few minutes. This is very normal.
Sperm can live inside the vagina for up to 7 days. Once sperm enters the uterus, there is no scientifically proven way of removing it. Between a few minutes and several hours after intercourse, some fluid may come out of the vagina.
Loss of seminal fluid after intercourse is perfectly normal, and most women notice some discharge immediately after sex. Many infertile couples imagine that this is the cause of their problem.
Most men ejaculate within a few minutes of starting to thrust during intercourse. Men with delayed ejaculation may be unable to ejaculate or may only be able to ejaculate with great effort after having intercourse for a long time (for example, 30 to 45 minutes).
“And, at your fertile time, the mucus is quite receptive to sperm right there.” The fastest and healthiest sperm go right into your cervical mucus “instantaneously,” she says, making pretty much zero difference whether you lie there for a while after sex or get up and move.
How much sperm do you need to get pregnant? Just one! Despite the average sperm count per ejaculate being 40 to 300 million, we only need one sperm to fertilize the one egg we ovulate each 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.”
Once the sperm enters the reproductive system, it can take about 30-45 minutes to reach the egg. For this, it is important to have a healthy sperm which has the right kind of motility to reach the egg and fertilize it. Once inside the body of a woman, a healthy sperm can live up to 2-5 days.
For healthy semen samples collected between 5:00am and 7:30am were found to exhibit a statistically higher sperm concentration, total sperm count and a higher percentage of normally shaped sperm, compared to samples produced later in the day. Sperm motility was not influenced by the time of sample production.
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.
How much sperm does it take? In theory, a single sperm is all it takes to get pregnant. But even in a large amount of semen — such as the quantity in one ejaculation — only a fraction of the sperm are healthy, moving, and sufficiently well-formed to cause a pregnancy.
Some studies suggest that moderate ejaculation (2–4 times per week) is associated with a lower prostate cancer risk. However, ejaculating more often doesn't mean your cancer risk drops even more.
This is because after the rush of orgasm, dopamine levels drop below baseline, similar to what happens during withdrawal from drugs of abuse. Low dopamine levels are associated with depression, low energy, lack of ambition, social anxiety, among others (Dailly et al., 2004).
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.
There is not much scientific evidence to suggest that it is either healthy or unhealthy to hold in semen. If a person does not ejaculate, the body will break the semen down and reabsorb it into the body.
The sperm enters the egg in the fallopian tube. It can happen even 3-5 days after ejaculation. There is no way for either of the partners to know if the sperm entered the egg. The only way to know for sure if the sperm did enter the egg is after a positive pregnancy test.
Most couples will get pregnant within a year if they have regular sex and don't use contraception. But women become less fertile as they get older.
Think lots of fresh fruits, vegetables, good quality proteins, nuts and seeds, healthy fats and whole grains. The key here is blood sugar control to support implantation and early embryo development, so limit the junk and focus on real, nutrient-dense food.
Summary: Sperm in the first fraction of ejaculate are more numerous, move more and present better quality DNA than those lagging behind.
Ultimately, there is no right number of times a man should ejaculate. While frequent ejaculation may offer several health benefits, no evidence proves that never or infrequently ejaculating causes specific health issues.
Fertility is most likely if the semen discharged in a single ejaculation (ejaculate) contains at least 15 million sperm per milliliter. Too little sperm in an ejaculation might make it more difficult to get pregnant because there are fewer candidates available to fertilize the egg.