The normal progesterone value for a woman in her fourth week of pregnancy is usually around 63.6~95.4nmol/L. A progesterone value of 72.79nmol/L in her fourth week of pregnancy indicates that the progesterone hormone is within the normal range. The normal progesterone value for a woman in her fourth week of pregnancy is usually around 63.6~95.4nmol/L. 72.79nmol/L is within the normal range, and it is more probable that the pregnant woman has an intrauterine pregnancy, and the current progesterone level is normal, and it is unlikely to be an ectopic pregnancy because if the pregnant woman has an ectopic pregnancy, the progesterone value will be lower than the normal range. It is recommended that pregnant women in the early stages of pregnancy, relax, avoid excessive anxiety, pay attention to the observation of the body, once abdominal pain or vaginal bleeding and other abnormal symptoms, consult a doctor in a timely manner to avoid delays.