Patient's question:
NoDoctor's answer:
The date of ovulation in women is generally about 14 days before the next menstrual period. After the egg is released from the ovary, it can survive in the fallopian tube for 1-2 days, waiting for fertilization; male sperm can maintain fertilizing ability in a woman's reproductive tract for 2-3 days, so sexual intercourse during the days before and after ovulation is more likely to result in pregnancy. For safety, we refer to the 5 days before ovulation, the 4 days after ovulation, and ovulation itself as a total of 10 days, known as the fertile window. Because sexual intercourse during the fertile window increases the likelihood of pregnancy, it is also called the fertile period or the risky period.