The best time to have an abortion is within 49 days of pregnancy. Normally, abortion can be done from 45 days to 12 weeks of pregnancy, but the best time is usually within 49 days of pregnancy, because the size of the gestational sac and the condition of the human uterus are more suitable for the procedure at this time. The abortion procedure should not be done too late. If it is done more than 60 days after pregnancy, it will cause more bleeding after the procedure because the pregnancy days are too long and the gestational sac is larger, which will cause more damage to the body. If the procedure is done later, the fetal bones will have formed and the uterine wall will be thinner, making the operation more difficult and taking longer. The best time for abortion is around 49 to 60 days of pregnancy. In addition, before the abortion procedure, the patient usually needs to take mifepristone or misoprostol which has the effect of softening the cervix, anti-progestin and reducing cervical damage, to help the procedure go smoothly.