Progesterone can promote the development of the placenta, the placenta is the place where the fetus grows and develops, the fetus’s nutrients are mainly supplied through the placenta, so eating progesterone has an effect on the fetus, the specific use of progesterone on the fetus is beneficial or harmful, need to be based on the specific circumstances. First, if the pregnant woman’s body during pregnancy progesterone secretion is insufficient, need to take progesterone under the guidance of a doctor according to the specific circumstances, so that the development of the fetus is beneficial, to avoid the development of the fetus or the emergence of fetal arrest, as well as miscarriage and other situations. Generally in the first trimester of pregnancy need to supplement progesterone, after three months most do not need to continue to take, you can eat more in the diet of progesterone more food. Secondly, if the pregnant woman’s body does not usually have low progesterone, generally do not need to supplement progesterone, to avoid excessive use of progesterone caused by precocious puberty.