The average HCG is around 50,000 IU/ml on the 45th day of pregnancy.
HCG rises faster in early pregnancy and can double in size, so it is important to look not only at the value of HCG in early pregnancy, but also at its rate of increase. If there is a doubling increase it means that the placenta is developing normally. If the HCG value increases slowly, further examination should be carried out to avoid the existence of abnormal development of the placenta.
HCG varies greatly from person to person, reaching its peak at around 6 to 8 weeks and then declining, as long as the test results are within the normal range.
A low HCG level can lead to pre-miscarriage, and will also show some symptoms such as abdominal pain and vaginal bleeding, etc. At this time, it is necessary to actively carry out tests and treatments to avoid miscarriage.