LisaC,

unfortunately that's always the risk. As BW said, you think you have all these embryos in the freezer, but an FET is a whole other numbers game, and losing a few or even all is a very real possibility. It's okay to have mixed feelings, the loss of embryos you've held out hope for, and gratitude of having embryos survive so you can have a transfer. In fact, I'm sure it's a pretty common feelings amongst us IVFers.