We found out today that our embryologist wasn't willing to call it at 2 blastocysts, so he gave a slow one an extra to day to catch up and see if it would form into a blastocyst and IT DID! They sampled it, it responded beautifully (as in, it survived) and was frozen.
We have an extra blastocyst, which brings us up to five! Five little frozen embryos. Oh embryos! We've worked so hard for you and the odds are so phenomenally against us. I'm scared to hope, but can't do anything but.