HCG refers to human chorionic gonadotropin, and the normal value of HCG in one week of pregnancy is usually 5~50IU/L, but the specific situation varies from person to person, and there is no definite value. The placental trophoblast cells in a woman’s body will secrete HCG after she is pregnant. As one week of pregnancy belongs to the early stage of pregnancy, the duration of pregnancy is relatively short at this time, and the placental trophoblast cells secrete less HCG, so there will be no obvious changes in HCG in a woman’s body, which is about 5~50IU/L, and with the increase of the gestation period, HCG will also gradually increase. It is recommended that when a woman is pregnant for one week, she should pay attention to rest, ensure sleep, and any uncomfortable symptoms, it is recommended to consult a doctor in time, under the guidance of the doctor, improve the relevant examination, clarify the cause of the disease, and symptomatic treatment.