In early pregnancy, pregnant women tend to have low progesterone. At this time, exogenous administration of luteal support is needed for better embryonic development. However, the medication should be administered under the guidance of a physician. Low progesterone may cause the fetus to miscarry for women during pregnancy. However, the presence of low progesterone does not necessarily mean that the corpus luteum is not producing enough, but may also be related to the embryo itself. If the embryo itself is not developing well, or if an ectopic pregnancy occurs, the progesterone level may also be low. In this case, it is necessary to go to a regular hospital to analyze the cause accurately and give timely and symptomatic treatment. If it is caused by insufficient luteinizing body secretion, exogenous luteinizing body support should be given in a timely manner, and progesterone capsules can be taken orally or progesterone injection can be given intramuscularly. Meanwhile, Chinese medicine treatment can be sought and given orally. Diet should be properly supplemented with progesterone by eating fruits rich in pectin and dietary fiber, such as kiwi, strawberry, grapefruit, etc. If the HCG doubling is not good and the gestational sac is not seen at 40 days of pregnancy, consider the possibility of embryo quality problem or ectopic pregnancy. Symptomatic treatment should be given promptly when it is determined. Therefore, low progesterone should be considered comprehensively, not just supplementing progesterone, but identifying the cause and then treating it symptomatically.