In the case of ectopic pregnancy, the HCG value is usually less than 10,000 mmol/mL and the progesterone value is less than 15 ng/mL. However, it is not possible to determine whether the pregnancy is ectopic from these two values alone, but it is also necessary to combine them with the results of pelvic ultrasound. If there is no gestational sac in the uterine cavity and there is a mass outside the uterus, clinically, ectopic pregnancy is considered to be more likely and it will take about 1 week to have another blood test for HCG, progesterone and pelvic ultrasound monitoring. If the results of the examination show that there is still no gestational sac in the uterine cavity, and the mass outside the uterus is gradually increasing in size or there is a fetal heartbeat or rupture bleeding, prompt surgical treatment is required.