After my first failed attempt at the age of 23 years for me and 30 for DH we have only tf two embies at a time ever since. that was even befor our multipule failure and losses At the time i was with Monash, i guess since i moved to MIVF they just continued with what had been happening with Monash.

You need open communication with you FS and discuss this with them, if you are not finding that you are getting this then IMO i woul dbe changing either FS, or clinic or both.