Most docs who work with high FSH typically no longer cancel cycles for hormone levels. There is no current research to indicate that waiting for a cycle with lowered FSH will cause any specific measurable increase at chance for pregnancy. So in essence, if you already have elevated FSH, your body is already "taking the hit" each month. The eggs are already being affected. Waiting a cycle or 6 cycles to reduce FSH won't have any major positive outcome. I've read that Cornell will sometimes still wait and even Dr Check has had patients who he has asked to wait until the next cycle to monitor FSH, but for the most part RE's agree that waiting does not increase the odds.