When does the pregnancy occur after the act?

Quite often women are wondering about when pregnancy occurs after intercourse. This interest is due to the fact that many use as a contraceptive physiological method, in which girls try to avoid sexual contact after ovulation.

As is known, the main condition for the onset of pregnancy is the presence of 2 mature sex cells: male and female.

When is conception?

As already mentioned above, a favorable time for conception is the period after ovulation. After the ripened follicle bursts, the egg moves along the fallopian tubes to the uterine cavity.

In this case, the vitality of the egg is rather limited by the time frame. So, conception can occur only within 12-24 hours from the moment of the release of the ovule from the follicle.

What influences conception?

It is known that spermatozoa are viable for 3-5 days. Therefore, after the sexual intercourse has taken place, they are still ready to impregnate the egg during this time. As a result, conception can occur even if the sex was 3-4 days before ovulation, and the spermatozoa that remain in the uterus are still alive.

In addition to the time of sexual intercourse, the fact that speed of movement of spermatozoa affects the conception also affects. On average, it is 3-4 mm per minute. Thus, it takes about 1 hour to advance it through the fallopian tubes. It turns out that self-fertilization, after sexual intercourse occurs even when it was only an hour.

What is the probability of conception in a week?

Many women, having learned that they are pregnant, try to set a date on their own, and remember when that very conception occurred. But not always it turns out. Having established the duration of pregnancy independently, and comparing it with what the ultrasound showed, women do not understand where the difference in 1 week came from.

The thing is that spermatozoa, being in the uterine cavity, retain their viability. Therefore, even in cases when ovulation occurred after unprotected intercourse, the probability of getting pregnant persists for 3-5 days after sex, which most girls do not even know about.

Thus, a woman, knowing when conception occurs after intercourse, can easily calculate the term of pregnancy, remembering at the same time the exact date when she had sex for the last time.