hi zanithe1- welcomeand congrats . i dont actually know anything about HCG levels but i found this and thought you might be interested:

Weeks Post LMP / Approximate HCG

3 - 4w: 9 - 130
4 - 5w: 75 - 2,600
5 - 6w: 850 - 20,800
6 - 7w: 4,000 - 100,200
7 - 12w: 11,500 - 289,000
12 - 16w: 18,300 - 137,000
16 - 29w: 1,400 - 53,000
29 - 41w: 940 - 60,000

hope this helps you and good luck.

kim