Ovulation period with sex but not pregnant what happened

1, the

same room time is not correct, the female reproductive system function is abnormal, the male reproductive system function is abnormal and other factors, as follows: 1, the same room time is not

, the egg can survive for about 12-24 hours, if the same room time is not appropriate, the sperm can not meet and combine with the egg during the egg survival period, it will not be pregnant.

2, the female reproductive system function is abnormal, the female

has tubal blockage, endometriosis, uterine inflammation, etc., which affects reproductive function, and can also lead to pregnancy.

3, the male reproductive system function is abnormal

due to orchitis, asthenozoospermia and other diseases, resulting in abnormal reproductive function, but also in ovulation with the egg can not be pregnant.