Even if you take the emergency contraceptive pill when you are ovulating, there is still a possibility of pregnancy. The contraceptive mechanism of emergency contraceptive pills is that the ovaries inhibit ovulation, and clinically change the thickness of the endometrium, preventing the fertilized egg from implanting in the uterus, so as to achieve the purpose of contraception. However, due to individual differences, the contraceptive effect of emergency contraceptive pills in clinical practice is not 100%. Although some people take emergency contraceptive pills within the prescribed time, there is still a possibility of pregnancy. It is not advisable to continue the pregnancy in this case and it is recommended to have an abortion. An abortion requires an ultrasound, a routine leukorrhea test, blood tests, clotting time and an electrocardiogram. After ultrasound diagnosis, intrauterine pregnancy between 5-8 weeks can be booked for painless abortion or painful abortion. Painless abortion is clinically preferable as it is painless throughout the procedure.