The accuracy of the human chorionic gonadotropin table refers to an approximate range of menopause and an approximate corresponding value of human chorionic gonadotropin; there is no accuracy. This is because the doubling of HCG growth varies from person to person. It is just an approximate measurement range, there is no such thing as being able to diagnose whether or not you are definitely pregnant by human chorionic gonadotropin, so there is no need to correlate this. If you have to compare the time of menopause with the size of the gestational sac, it is recommended that you compare the size of the gestational sac with the time of menopause on ultrasound to be more accurate.