The cost of monitoring blood HCG after pregnancy is around$100. After pregnancy, the body secretes a special hormone called chorionic gonadotropin, or HCG for short, which increases exponentially as the number of days after menopause increases. HCG monitoring is also an indicator of intrauterine development and a way to see how active the embryo is in the uterus, but ultimately it is dependent on ultrasound. For women who normally have regular periods, the ultrasound can detect the pregnancy sac on the 35th day after menopause, the fetal buds on the 42nd day after menopause, and the fetal heartbeat on the 49th day after menopause, i.e., at about 7 weeks, which is the real meaning of early intrauterine pregnancy.