It is also possible to take emergency contraceptive pills if contraception fails 15 days after having an abortion, which can reduce the chance of unwanted pregnancy. Generally, after an abortion, a woman will have her period in about 30 days, and before she has her period, her ovaries will usually resume ovulation. Fifteen days after the abortion, if the uterus recovers well, the ovaries may ovulate. If you have intercourse at this time and do not use contraception, you may become pregnant unexpectedly. In order to reduce the chance of pregnancy after intercourse, you can take emergency contraceptive measures, such as oral emergency contraceptive pills. However, when you take the pill, you need to fast, that is, you can not eat within two hours before and after taking the pill. If vomiting occurs within two hours of taking the pill, it may affect the effect of the drug. You can’t have intercourse for a month after the abortion, or else infection will easily occur. Now that you have had intercourse, you must pay attention to observe whether there are symptoms of acute pelvic inflammatory disease such as abdominal pain, lumbago, and increased vaginal discharge. If these symptoms occur, you should also go to the hospital in time for examination and treatment.