It is not very meaningful to check HCG at 8 weeks pregnant, and ultrasound is fine if there is no abnormality. HCG is a glycoprotein secreted by placental trophoblast cells, also called human chorionic gonadotropin, which is an important hormone in early pregnancy. It is more meaningful to check HCG when a woman is 5 to 7 weeks pregnant, checking progesterone, HCG, ultrasound, and combining the three to determine whether the ectopic pregnancy is ectopic or not, and the screening for ectopic pregnancy has been completed at 8 weeks of pregnancy, and there is no great significance to do the HCG test if there is no abnormality during pregnancy. The 8 weeks of pregnancy is through ultrasound to see whether there is a gestational sac, buds, fetal heart development in the uterus, to determine the maturity of the fetus, 8 weeks of pregnancy has a gestational sac, buds, fetal heart development, proved that the uterus is a live fetus, you can not go to the blood test HCG. In the early stages of pregnancy, you should pay more attention to rest, observe any abnormal symptoms and seek medical attention.