A normal progesterone value in early pregnancy should be greater than 25ng/ml, and a progesterone value of 16ng/ml is on the low side. A progesterone value greater than 25ng/ml in early pregnancy indicates that the gestational sac is well developed and the risk of miscarriage is low. However, if the progesterone value is low, then the risk of miscarriage increases. However, it is not 100% likely to miscarry, but also need to be combined with blood HCG, ultrasound, symptoms, etc. to make a comprehensive judgment. If the pregnant woman’s blood HCG doubling normal, ultrasound examination found that the embryo development in line with the corresponding gestational weeks, if the progesterone is low need to supplement the corpus luteum under the guidance of the doctor, you can take oral progesterone capsules or intramuscular injection of progesterone. At the same time, pregnant women should also pay attention to appropriate rest, avoid strenuous activities, do not overwork, and do not stay up all night to avoid miscarriage. If abdominal pain, vaginal bleeding and other symptoms occur, you need to seek medical treatment.