They only let me put back 1 on my 5 day transfer because I am 33. It didn't seem like it even was up for discussion. If it were a 3 day, I think they still would have pushed for just 1 embryo. I think on the guidelines sheet they gave me before my transfer it showed that for late 30's they would do 2 or 3. Not sure though about whether that would be applicable for day 5 transfers, however, because the hospital I go to (in Boston) doesn't typically do day 5 transfers, or at least they don't advertize it! I had to bring it up to my doctor after my ER to see if it was a possibility and he allowed it.
Its amazing how all clinics are different. They never gave me any guidelines on paper; just told me if it was a 5 day, they put 2 back and if I had a 3 day, they would put back 3 or even 4!
Stinas - Yea, the risk of triplets is something to consider, but I think I would risk that over it not working at all. And since I had a cycle already with 2 put back on day 5, and we know only 1 took that ended badly, maybe they would let me do it? Something to definitely think and talk about. I guess it will all depend on my grade of embryos Sunday as well!