Hi Beccas,
Thought this might ease your mind.
I just got my third hcg level back (1st one was <2, 2nd one was 29) this one was 2189!! It is on the lower side, but all my preg, including the 2 successful ones have been lowish to begin. It indicates that it has doubled as required, so I am happy with numbers. I still don't know how far along I am though. Somewhere between 5 and 6 weeks (dates say 6w 5d but ovulated late) It sounds like your levels do what mine do. Don't worry, they tend to jump up quickly with me and MS hits with a vengence. CONGRATS and GOOD LUCK!!!!!