I give up

I was so excited this morning because I seemed to be responding better to the meds. WRONG. They just called with my E2 numbers and were lower than expected, so my next appt got moved from tomorrow to Wednesday. Last cycle on CD8 (with smaller follicles mind you) my E2 was 112. Today = 77. Ugh. I still don't totally understand what E2 means and what it does, but in my mind, with larger follicles than last cycle, it should be higher, not lower. Sigh. I'm writing up a list of questions to try to understand it more, to ask when I go back on Wednesday.