39 days pregnant how much progesterone is normal

Under normal circumstances, the normal range of progesterone value at 39 days of pregnancy is 18~32ng/ml, and the progesterone level in early pregnancy is gradually increasing, but because progesterone secretion is pulse-type secretion, that is, the results examined at that time may not be within the expected normal range, but there is no abdominal pain and vaginal bleeding and other symptoms of threatened abortion. In the early stages of pregnancy, the main source of progesterone is luteal secretion of pregnancy. If the value is relatively low or there is a downward trend, it may be related to threatened abortion. At this time, it is necessary to take preventive measures.