A woman usually produces a single follicle each month as a result of various hormonal changes. The egg, which develops within the follicle, once, mature, is released. The fallopian tube subsequently picks the egg up, and moves it towards the uterus. The quality of the cervical mucus at the time of ovulation must be such that it allows free passage of the sperm into the uterus.
Common female infertility problems are due to the following :