Chorionic gonadotropin greater than 10,000 is usually around the 6th week of pregnancy, with individual variations, and the week of pregnancy can be further assessed by the last menstrual period or the size of the embryo on obstetric ultrasound.
After pregnancy, chorionic gonadotropin begins to be secreted and the value starts to rise. At around the 6th week of pregnancy, the chorionic gonadotropin level increases to 10,000, and then continues to rise as the weeks of pregnancy get longer, reaching a maximum at 8-10 weeks of pregnancy and remaining at this high level.
Since there are significant differences in the rise of HCG in individual pregnant women, even with the same number of days of menopause, the value of chorionic gonadotropin in the test is not always the same. Therefore, the accuracy of determining the week of pregnancy by blood HCG is low, and it is recommended to combine with the time of menopause and the size of the ultrasound to accurately assess the situation.