For reference:
Is my hCG level "normal"?
There is really no single "normal" hCG level in early pregnancy and there is a very wide range of hCG values as pregnancy progresses.
An hCG level below 5 mIU/ml is considered not pregnant.
An hCG level above 25 mIU/ml is considered pregnant.
An hCG level between 5-25 mIU/ml requires a follow-up test to confirm the results.
At hCG levels in early pregnancy below 1,200 mIU/ml, the hCG usually doubles every 48-72 hours and it should normally increase by at least 60% every two days.
Between 1,200 and 6,000 mIU/ml serum hCG levels in early pregnancy, the hCG usually takes 72-96 hours to double.
Above 6,000 mIU/ml, the hCG often takes over four or more days to double.
In general, when the HCG level reached 7200 mIU/ml, a yolk sac should be seen
At an HCG level greater than 12,000 mIU/ml there should be a visible embryo with a heartbeat, though it could take up to an hCG level of 22,000 mIU/ml to first see the fetal heart beat.
After 9-10 weeks of the pregnancy hCG levels normally decrease.
It makes little sense to follow the hCG level above 6,000 mIU/ml as the increase is normally slower at this point and not related to how well the pregnancy is progressing. After two to three months the hCG levels will slow even further and eventually hCG levels may even decline before reaching a plateau for the duration of the pregnancy.