IVF transfer

Hello there, I am 21 and have never been pregnant. There are no medical problems and I have recently retrieved 25 eggs with 10 that fertilized and are being sent to PGS. I am young and think my success rate is high but I don't want to transfer one and it not stick but I also do not want to transfer two and have twins. I am looking for success rates for the transfer of 2 embryos. My husband and I cannot afford to do this again and he strongly suggests 2. Of course I will be listening to everything my doctor says hoping that he has the best interest for our success rate and not the score for money. Any suggestions?