Patient's question:
1. Is the safe period for sex the three or four days before or after menstruation? Can I not use contraception during this time?2. My periods were always regular before, but this month they were delayed by four or five days, and there was only a little blood. Am I pregnant? I took a pregnancy test, and it was negative. What should I do?
3. How is sex supposed to be? My boyfriend's thing went into me, but it hasn't broken my hymen even after many times, and it doesn't hurt. Did he go to the wrong place? What should I do? Help me!
4. What is the best way to have an abortion without affecting my studies?
Doctor's answer:
The date of ovulation for women is generally about 14 days before the next menstrual period. Starting from the first day of the next menstrual period, count backwards 14 days or subtract 14 days to determine the ovulation day. The ovulation day, along with the 5 days before it and the 4 days after it, together constitute the fertile window. Except for the menstrual period and the fertile window, the remaining time is considered the safe period. During the safe period, sexual intercourse does not require the use of any contraceptive medications or devices. If the menstrual cycle is regular, the safe period can be determined using the above formula for each menstrual cycle, allowing for the avoidance of ovulation and preventing pregnancy.