Congratulations! I do recall mine being lower than that even, I would try not to worry too much yet. Having had a positive blood test for pregnancy with my first IVF cycle , i was told that my hormones were low too, and to come back in a few days for another blood test. The nurse that day also said that i may lose it, as the levels were so low. Nedless to say, He did stick, and all went perfectly well. I have heard this from a lot of girls who underwent IVF, where they were told their levels were low, and not to get too excited. I think this must be a standard thing that they tell all of their patients, so that if something was to go wrong, it wouldnt be such a hard fall. IYKWIM.
So anyway... Well done, and congratulations.