Morning urine test pregnant afternoon did not return a responsibility

The concentration of human chorionic gonadotropin in morning urine is relatively high, and it will be strongly positive when tested early. During this day, after drinking water, eating, and urine excretion, the concentration of human chorionic gonadotropin will decrease, so it will show negative or weak positive in the afternoon. This situation is a normal performance. Generally, the early pregnancy time is too short, and the morning and afternoon will show certain errors. Or if there are signs of miscarriage, it will show a low concentration of chorionic gonadotropin, which is not detectable in the afternoon. In this case, it is best to draw blood for HCG and progesterone values to determine whether pregnancy is pregnant.