The normal value of progesterone in 43 days of pregnancy should be around 22-50nmol/L, each unit of the test method and the unit is different, the value has a certain difference, and then there are individual differences, because the fertilized egg implanted early and late different, the body’s hormone level metabolism is also different. Under normal circumstances, the value of progesterone will gradually increase with the growth of pregnancy time, in 7 weeks of pregnancy the value of about 52.7-100.1nmol / L, 8 weeks of pregnancy the value of 64.6-113.8nmol / L, 9-12 weeks of pregnancy, the value of 78-159.2nmol / L, if the value of progesterone in early pregnancy is lower than these reference values, you can take progesterone by mouth, capsules, or intramuscular progesterone injection. If the progesterone value is lower than these references, it can be treated by oral progesterone capsule or intramuscular injection of progesterone injection, and after one week of medication, blood will be re-drawn to check the value of progesterone and the level of human chorionic gonadotropin, together with ultrasound examination.