Progesterone is a progestin, a hormone necessary to maintain pregnancy, and the diagnosis of pregnancy should not be based solely on progesterone test values. Generally, progesterone values in non-pregnant women range from 0.2-25 ng/ml, depending on the stage of the menstrual cycle. After pregnancy, the level of progesterone in the pregnant woman’s body rises gradually, and with the increase in the number of weeks of pregnancy, the progesterone test value decreases after 8 weeks of pregnancy. Diagnostic methods for pregnancy include: history of menopause, early pregnancy reaction, urine pregnancy test, progesterone test, blood HCG test, pelvic ultrasound, etc. Therefore, pregnancy diagnosis cannot be made solely on the basis of progesterone test values. In particular, pelvic ultrasound examination can be performed to clarify whether it is intrauterine pregnancy or ectopic pregnancy. If there is any discomfort, it is recommended to consult a doctor in time to avoid delaying the condition.