Is infertility normal during ovulation?

Although cohabitation during ovulation

can increase the probability of pregnancy, it is not 100% pregnant, especially in cases where sexual life frequency is less, mental pressure is usually greater, overwork, etc., it is normal that there is no pregnancy after cohabitation. However, if ovulation is selected every time in the same room, there is still no pregnancy within one year. At this time, most of them are abnormal. In general, they are related to factors such as female tubal blockage, uterine fibroids, endometriosis or low number of male sperm and poor sperm quality.