Not to sound harsh, but at 41 the chances of those embryos resulting in a healthy pregnancy of multiples is slim. I agree with you that re-biopsying them could cause more damage than good. Did the clinic goof? If yes, I would ask them to do the FET gratis. If they don't stick, put the next 2 in the next month. There is no way I would drag out doing eSET with those embryos.
Good luck and I'm so sorry this happened to you.
