Originally Posted by Dr. Potter

It may help with number and quality of eggs in some patients. It is not likely to have much impact on the genetics of the embryos though. There are many variations of the estrogen priming protocol. Estradiol pills, patches or both are usually started in the mid-luteal phase. Antagonist is sometimes added after the first day of estradiol. Patient then stops antagonist and estradiol and begins stims on 3rd med free day. Cyckle will either be a ML flare or antagonist protocol. This is one variation. I hope that it helps.