It is not normal to have stomach pain on the 8th day of medical abortion, this situation should consider two possibilities: first, pelvic inflammation caused by medical abortion; second, it may be the embryonic tissue remaining in the uterine cavity. Normal women will not have stomach pain on the 8th day after medical abortion, this time there is stomach pain may be the uterus or fallopian tubes, ovaries and pelvic inflammation, you need to go to the hospital to do gynecological examination, ultrasound examination. If there is pressure and pain in the uterus in gynecological examination and fluid in the pelvic cavity in ultrasound examination, it is considered to be caused by inflammation and needs to be treated with oral anti-inflammatory drugs under the guidance of the doctor. If there is residual embryonic tissue inside the uterine cavity, this symptom will also occur, you can go to the hospital to do ultrasound to see if there is residual tissue inside the uterine cavity, if there is and more need to do purging surgery.