Tough decision to have to make. One I thankfully don't have to as it was last my last embie of 3 that I am pregnant with now (37w). DS was the fresh et from same cycle. If it was just one left I would be very likely to go for no.3 in a few years. If I had more I would like to think I could donate them to another couple. You can have a strong say in who receives your embies so u could specify what kind of relationship u would have with them in the future, such as yearly catch ups or photos sent etc that's what I would want. I would want my kids to know their genetic siblings. I have no doubt the donated embies would be loved and cherished by the recipient parents. I also can't help but think if I was an embie and I had a choice I would choose to be given a chance to exist rather than not even if it wasn't with my genetic parents. An ethical/moral dilemma for sure.