Bleeding for 2 days after taking the emergency contraceptive pill is equivalent to a period. Vaginal bleeding after taking the emergency contraceptive pill is the withdrawal bleeding of the drug, which is also equivalent to a menstrual period. Emergency contraceptive pills are usually taken within 72 hours after intercourse, and after taking them, there will be withdrawal bleeding, and the amount of bleeding is less than the usual amount of menstruation. Bleeding after taking emergency contraceptive pills, the uterine lining is shed, the fertilized egg can not be able to bed, so it can play a role in contraception. Therefore, the bleeding is equivalent to a new menstrual cycle. Emergency contraceptive pills need to be taken within 72 hours after unprotected sex. The earlier the pill is taken, the better the contraceptive effect, but there is also a certain failure rate. Emergency contraceptive pills are also more damaging to a woman’s body and should not be used as a regular form of contraception, and should not be taken more than 3 times in a year.