The effect and characteristics of different drugs to protect the fetus are different and need to be taken under the guidance of a professional doctor after clear examination. If there is abdominal pain and fetal Qi rebellion in pregnancy, it is usually related to Qi stagnation, so you can use some qi medicine, such as perilla, sand, aromatic herbs, and if there is bleeding, you can use gum and mugwort to stop bleeding to play the role of fetus; 2. The first is to take the first step in the process of the abortion. Western medicine 1, progesterone: progesterone or dydrogesterone is commonly used to supplement the lack of progesterone secretion caused by luteal insufficiency, reduce the excitability of the uterine muscles, as well as reduce the sensitivity to oxytocin, thus inhibiting uterine contractions, which is beneficial to fetal growth; 2, chorionic gonadotropin: can be used to promote ovulation, promote luteal development, support the function of the corpus luteum, so as to prevent and control pre-eclampsia and habitual abortion; 3, inhibition of contraction drugs: such as sulfuric acid and sulfuric acid, which can be used to prevent and treat pre-eclampsia. Inhibitors of contractions: such as magnesium sulfate, salbutamol sulfate, can inhibit smooth muscle contraction, relieve abdominal pain, thus preventing preterm abortion. In addition, supplementation of vitamin E and folic acid can also promote embryonic development, thus improving the situation of pre-eclampsia miscarriage to achieve the purpose of safe abortion. Medications should be used under the guidance of a doctor to avoid adverse consequences caused by blind use of drugs.