Deferiprone is a progestin drug that is commonly used in the treatment of progesterone deficiency, resulting in preeclampsia or habitual miscarriage. If you are pregnant and have low progesterone, you can take dextroprogesterone orally to increase the value of progesterone in your body to protect the fetus. Under normal circumstances, dextroprogesterone can be completely metabolized in the body and excreted in the urine, so if used in normal doses, it will not lead to fetal malformation. However, long-term use of hormonal drugs may also affect fetal growth and development, so unless there is a clear clinical indication, you should try to avoid using drugs during pregnancy. In addition, the drugs should be used in accordance with the doctor’s instructions, and the dosage should not be increased or decreased arbitrarily to avoid adverse consequences. If the value of progesterone increases to within the normal range, the medication can be stopped in time according to the situation to avoid increasing the probability of malformation. During pregnancy, you should have regular checkups, and consult a doctor when you find abnormalities in the fetus to avoid blindly using medication to affect the healthy growth of the fetus, especially in the early stages of pregnancy, when the development of the fetus is imperfect, and it is easy to be affected by external factors that lead to malformations, and it is recommended that you should follow the doctor’s instructions to supplement folic acid in the early stages of pregnancy, so that you can effectively prevent neural tube malformations and other diseases. You should pay attention to rest, avoid exertion, and stay away from harmful environments such as radiation, rays, and chemical substances to reduce the risk of fetal malformation.