I just saw a post where you said that you don't get your P4 done anymore, and I wanted to tell you that my 1st cycle mine was 26 and the RE said it was good, the next cycle it was 6 : (
It was a good thing I had it tested again, because she put me on supps and I got my BFP.
I would continue to have it checked, but like you said, don't put any faith into the numbers (hell.... I wouldn't have thought that a 6 + supps would have sorked out the way it did)