It is normal to start bleeding 5 days after you have taken the pill. The emergency contraceptive pill is a contraceptive containing progestin and a few people experience withdrawal vaginal bleeding 5-7 days after taking the pill. It also has the side effect of causing menstrual disorders. Whether it is withdrawal bleeding or menstrual disorders coming from menstruation, as long as the amount of menstrual blood is not too much you can temporarily not do anything special. However, if the vaginal bleeding is heavy, you need to go to the hospital as soon as possible or take temporary treatment such as Uterine Blood Clotting Capsules or Yunnan Baiyao to stop the bleeding. As a remedy, emergency contraceptive pills should not be used more than three times in a year, otherwise it will not only fail to prevent pregnancy, but also lead to endocrine disorder and even amenorrhea. So don’t be too nervous about this situation once in a while, but if you don’t have a plan to get pregnant in the short term, it’s best to take precautions.