The nurse called yesterday to tell me one of the embryos actually made it to day 6, so they froze it. I asked about the rating, and she said it is 2AB. The “AB” part is good. The “2” part is not as good (on a scale of 1-5, with 5 being the best), BUT, the fact that it made it to day 6 at all says something. I hope what it REALLY says it that at least one of the “three best” embryos from day 3 has continued to develop and is implanting my uterus today.