After the oral abortion drugs, the stomach will be more painful for about 6 hours. Because there is a rapid contraction of the uterus, can cause the release of too much prostaglandin, and can cause gastrointestinal tract function of colic occurs, usually in about 6 hours, after the gestational sac is discharged will be slowly relieved. The pain in the stomach after the expulsion of the gestational sac lasts for about 7 days. Although the gestational sac has been expelled, the uterine cavity is still thick with endometrial tissue, which needs to be peeled off to restore the normal uterine condition. When the lining is removed, there is a chance of stomach pain, which lasts for about 7 days. after 7 days, it will slowly return to normal and will not affect your health, and the amount of bleeding should also be observed. If it is greater than the amount of menstruation, go to the hospital for treatment to shrink the uterus, to avoid causing the chance of hemorrhage.