I was struggling with DOR and high FSH (not as high as it is now, but high by my former RE's standards) when I conceived my DD. Prior to her I had 2 losses, then attempted IVF once and was cancelled and made it to ET with 1 embryos on a 2nd IVF. Both were very high stim and was pretty much shown the door after IVF#2. I immediately had a consult with CCRM (that I scheduled before just in case) and was pretty much told that my eggs were crap and that I had like a 1% chance with my OE. DH and I decided to pursue DE.
I got pg with DD the cycle after IVF #2. In the 3 months before IVF#2 both DH and I gave up alcohol and caffeine, I took a pretty large daily dose of DHEA and did weekly Acu, working up to 2x/week prior to ET. Did any of these things contribute to DD??? Who knows? Honestly I really just think I got lucky. Sometimes I feel guilty because this time around, I'm doing absolutely none of that stuff. I tried DHEA again and had a horrible reaction, even at a lower dose. Acu adds up $$ wise and I had a hard time fitting it into my schedule.
Since DD I've had another loss and I feel like my body has taken a nose dive, fertility wise. There's a part of me that feels like my body just held on long enough to get out one good egg.
I think it makes sense that FSH can be higher the cycle after stims- there's probably just some residual stuff in the system. I don't know about the Estinyl affecting AFC- I've heard others around here say theirs was higher after taking EE so I don't know if there's a correlation.