Post Date November, 16 2024
Sperm survives in the body for several days
The survival time of sperm in women is 2-3 days. The survival time of eggs is generally 24 hours, that is, about one day. However, the survival time of sperm in women is longer than that of eggs, which can generally reach 2-3 days, and may be longer in some cases. Research shows that human sperm can only survive for a few minutes in the natural environment in vitro. However, the sperm directly entering the female body can still maintain vigorous vitality due to the relatively suitable environment, and its reproductive capacity cannot be ignored within 2 days.
This is also about the result of natural selection and evolution. The magic time difference also provides more possibilities for sperm and egg to meet and become a fertilized egg. Therefore, if a woman does not want to be pregnant for the time being, it is better to spare a few more days when calculating the ovulation period and the dangerous period. It is also better to take precautions three days before the ovulation period. Of course, for those who plan to get pregnant, they can also act in advance to give themselves some opportunities.
Because the physical environment of women varies from person to person, the survival time of sperm in the body varies greatly, some of them are shorter than 2 hours, and some can be up to several days. The survival time mainly depends on the specific location of sperm in the body. However, the time when sperm has strong fertilization ability is only 1-2 days after entering the body, and the fertilization ability is the strongest within 14 hours after cohabitation. Therefore, only within 1-2 days before and after female ovulation, the probability of pregnancy will be higher.
Why does sperm flow out after sexual intercourse
The semen outflow after cohabitation is due to the effect of gravity, which is a normal physiological phenomenon. Because the amount of semen that a man ejaculates at one time is about 2-5ml, the semen will temporarily gather at the female cervix after entering the female vagina, and the healthier sperm will enter the uterus through the female cervix, and enter the fallopian tube and combine with the female egg to form a fertilized egg. The composition of male semen is not only sperm, the most of which is prostate fluid. Prostate fluid will not enter the female uterus, but only the sperm in prostate fluid will enter the female uterus.
Therefore, most of the semen will flow out of the female vagina, not all of it will enter the female uterus. Semen outflow itself is a normal physiological phenomenon, but in order to get pregnant during sex, the hips can be properly raised after sex, which can effectively increase the probability of pregnancy.
