Patient's question:
NoDoctor's answer:
Women ovulate regularly once a month. The time of ovulation is generally 12 to 16 days before the next menstrual period. The egg released typically survives for 12 to 30 hours. After sexual intercourse, the semen ranges from 2 to 3 milliliters to 5 to 6 milliliters. Each milliliter contains between 60 million and 120 million sperm. In the vagina, 90% of sperm die within 2 hours, with most surviving no more than 8 hours. 1 to 5% of sperm can reach the uterine cavity. Sperm that enter the uterus can survive for up to 6 hours, and in the fallopian tubes, sperm can survive for 1 to 3 days.