The normal value of progesterone in the 5th week of pregnancy is around 25ng/ml is normal. In the 5th week of pregnancy, the level of blood HCG and progesterone gradually starts to increase, maintaining a high level of progesterone can reduce the contractility of uterine muscle fibers, reduce uterine contraction, which is conducive to embryo implantation and development, and can also reduce the discomfort caused to pregnant women such as lower abdominal pain and swelling. If a woman’s progesterone level is too low, below 15ng/ml, there may be lower abdominal pain, vaginal bleeding and other cases of pre-eclampsia, and spontaneous abortion will occur with a progesterone value below 6ng/ml, which is unlikely to be successful after medication to preserve the pregnancy. In the early stage of pregnancy, especially after 5 weeks of pregnancy, the growth and development of the embryo in the uterine cavity should be regularly observed. Women should not be too nervous, pay attention to proper rest, increase nutrition and keep their mood relaxed, which is conducive to the growth and development of the embryo in the early stage.