Hi Darily,
DH and I are in our early 30's and started IVF at MIVF due to male factors. When we started our FS recommended very strongly that we only put one back, given that we were relatively young and with known probs that the ICSI should overcome - she figured we had a good chance of success of falling pg, and they really do prefer single pgs. We did that for a couple of cycles. After no success I pushed to have two put back - and given that we had already had a few unsuccesful cycles, she agreed. We had two transfers with two embies - the second resulted in this pg (single pg).

I think that different FS will have a different mindset, and it will also depend on things such as age, situation (we were also traveling a large distance so our FS understood that for us getting pg on an earlier cycle would be good!), health etc. However there is a strong push to only put one back - given the higher risks associated with multipuls. Do the research and be fully prepared for the risks if you go ahead with putting two back.

If you are not having any luck, seek a second opinion from another FS at MIVF - see what they say.

Good luck
FG