The doubling of HCG is mainly performed for patients suspected of having abnormal pregnancy such as ectopic pregnancy or embryonic abortion. The doubling of HCG is determined by the number of days of early pregnancy, not a generalized doubling every other day. HCG is a glycoprotein hormone produced by gestational trophoblast cells, which can reflect the development of the embryo. If the monitoring finds that the doubling is good, the progesterone level is not abnormal, there is no abdominal pain or vaginal bleeding, and the ultrasound examination of the uterine appendages confirms that the gestational sac is in the uterus, then you only need to rest and do regular pregnancy checkups according to the doctor’s prescription, and there is no need to check the HCG doubling. In the early stage of pregnancy, pay attention to rest and avoid heavy physical labor and strenuous physical exercise. Sexual intercourse is forbidden in the first trimester to avoid over-stimulation induced contractions, which may have adverse consequences. The diet should be a reasonable mix of meat and vegetables, mainly nutritious and easy to digest and absorb, a small number of meals, and less cold, spicy and stimulating food.