Patient's question:
After cohabitation, I realized that I have been ovulating recently and I'm worried about getting pregnant. What time after cohabitation is effective to take birth control pills?Doctor's answer:
Emergency contraception pills are used as a backup measure after unprotected sexual intercourse. Under the premise of regular menstruation, the ovulation period is about 14 days before the next menstrual period. The probability of pregnancy during ovulation is very high. If you want to take emergency contraception pills, you can achieve contraceptive effects as long as you take them within 72 hours after intercourse. You should fast for two hours before and after taking the medication to avoid gastrointestinal discomfort. In fact, the earlier you take the pill, the better the effect. It is recommended that you use reliable contraception methods during intercourse, such as wearing condoms, to avoid frequent use of emergency contraception. Emergency contraception pills can cause irregular menstruation, such as delayed periods, early periods, or irregular cycles.