Anonymous wrote:OP here, Many thanks, PP. Very timely and useful. I have a son already so don't want twins. I asked him if I could have one enbryo transfer instead of 2-3, and he told me that would reduce my chance of pregnancy (which seems contrary to Shady Grove data as I learned from this board). I am taking birth control pills now so have not really started the cycle. Shall I nail everything down with him before treatment, or follow the flow?
There are many factors to consider, you might want to be flexible on this one. I would wait until you hear how many fertilized embryos you have and what quality they are. I had only three on the day of transfer (2 of excellent quality, one was decent -don't remember the grades), and we opted to put back in the two high quality embryos (note: we were fine with twins). This resulted in one healthy baby. I was 31, DH was 33. In a way I was surprised -I figured with age and quality on our side, we would have had twins.
It sounds like you have done your own research, so see what you have right before transfer, and make your decisions based on that. I wish you the best of luck.