Progesterone is a very important hormone for women and low progesterone tends to affect the probability of pregnancy. Low progesterone in women after pregnancy can increase the risk of preterm miscarriage and embryonic abortion. Women who have low progesterone, especially in early pregnancy, can take progesterone tablets. The most commonly used ones are dydrogesterone tablets and progesterone softgels, which are progesterone preparations that can replenish progesterone and raise the progesterone level in the body. Proper progesterone supplementation has a fetus-preserving effect, and is also helpful in promoting fetal stability and the growth and development of the baby. These drugs may cause dizziness and loss of appetite in pregnant women in the process of using them, and it is recommended to take them half an hour after meals. The progesterone level can be monitored dynamically during the course of the medication.