If you are pregnant and don’t want the fetus, you need to take appropriate methods to terminate the pregnancy, if you want to take drugs to achieve the purpose of termination of pregnancy, you need to be carried out in the 49th day of pregnancy, usually used for medication abortion is mainly Mifepristone and Misoprostol. Mifepristone is an anti-progesterone receptor drug, which can antagonize the effect of progesterone and change the properties of the endometrium, which is not conducive to the development of the gestational sac, thus leading to the detachment of the gestational sac from the uterine cavity. At the same time, with the taking of misoprostol, misoprostol has induced uterine contractions, cervical softening effect, is conducive to the endometrium has been detached from the gestational sac timely discharged out of the body.