The first stage is the pain of the uterus contracting to expel the embryo in the process of medical abortion. The process of taking mifepristone is mainly to kill the embryo, so it does not cause pain. After taking Misoprostol tablets, it will cause contraction of the uterus to facilitate the elimination of the embryo, and the process is painful. The onset of pain varies depending on the sensitivity of the individual to the drug. The pain will occur 1-2 hours after taking the drug, and after another 1-2 hours, the embryo will be expelled, which is more painful. The pain after expulsion would be the second type of pain, which is the painful contraction of the uterus to regain its strength. The pain is not as intense as the pain of expulsion and can be tolerated.