Patient's question:
No.Doctor's answer:
If the menstrual cycle is always accurate, ovulation may occur on the 14th day after menstruation. After the egg is released, it can survive for about 2-5 days. Sperm can survive in the female reproductive tract for 1-3 days. Therefore, not having sex 3-4 days before ovulation and 5-7 days after ovulation can avoid pregnancy.