Generally more than 40 days of pregnancy, you can go to the hospital ultrasound, if you determine intrauterine pregnancy, the gestational sac is not large can be prescribed in the hospital abortion drugs, including mifepristone tablets and misoprostol tablets, which are prescription drugs, can not be bought in the drugstore, to be in the doctor’s guidance to use the drug. The general success rate of medical abortion is not particularly high, about 60%-70%, if the medical abortion is not successful, the residue is particularly large, it is possible that you need to do clearance surgery, clearance than a single abortion damage will be greater, because it is a second injury. So if you are sure that you are pregnant in the uterus and want to terminate your pregnancy, you should weigh all the options and choose the right way to terminate your pregnancy.