Generally, abortions are performed between 6-9 weeks of pregnancy. If it is not six weeks, the gestational sac is very small and it is easy to miss the aspiration when doing abortion, that is, it does not scrape the gestational sac and the abortion fails. However, the abortion should not be done too early, and the medicine should be used only after the gestational sac can be seen in the uterine cavity. If the gestational week exceeds nine weeks, direct scraping for abortion will cause great damage to the uterus, so at this time the patient is usually advised to take the medication first and then clear the uterus after most of the gestational sacs have flowed out to remove the residual tissue. Therefore, it is best to have an abortion at 7-8 weeks, do not wait until the gestational week is too big before deciding to have an abortion and harm your body.