Taking prohibited drugs for pregnant women in early pregnancy may affect the growth and development of the fetus, leading to malformation of the fetus development, or easy to have a miscarriage. In the early stage of pregnancy, the embryo is not yet mature, during this period, if you accidentally take the prohibited drugs, the drugs will stimulate the embryo, affecting the growth and development of the fetus, and in serious cases, will lead to fetal deformity, or even miscarriage. Therefore, once the prohibited drugs are taken in early pregnancy, the pregnant woman should go to the hospital for ultrasound examination in time to detect the size of the gestational sac and the fluctuation of the fetal heart, and at the same time to observe whether there is vaginal bleeding, abdominal pain, nausea and other symptoms of physical discomfort. If no fetal heartbeat and yolk sac are detected, it is considered that the embryo has stopped developing, and the pregnancy should be terminated under the guidance of a doctor to avoid damage to her health. Pregnant women taking any medication during pregnancy should be under the guidance of a doctor, do not take medication without authorization, in order to avoid harming the fetus as well as their own health. Once the symptoms of physical discomfort occur, you need to consult a doctor in a timely manner.