I started taking Estinyl in late February, right after my initial appt with Check. I was on it for almost 60 DAYS (that's a lot), and, while it lowered my FSH a great deal, my E2 didn't rise at all. So, they started me on 13 days of progesterone to trigger AF. And lemme tell ya, when it did arrive, it was a doozy. Seriously the heaviest bleed I've ever had in my entire life. However, Check told me to stay on the estinyl, which I did. And, when I went to get my CD3 b/w last week, the numbers were - I hope - fairly optimistic. My FSH was down to its lowest ever - 11! (From 99 in February) I go back tomorrow for b/w and u/s. So, while I initially thought it didn't work, I'm going to give it one more shot.