I have just found this site and can't say how wonderful it is!!!
Like many ladies i too forgot to ask questions of the embriologist and i really hope you can put my mind at rest Peter.
I have had an natural cycle FET and had 2 embryo's put back 22/4
Only thing is they were frozen on day 2 as 4 cell embryo's and were put back as one 5 cell - ( thawed as a 3 cell then divided to 5 cell )and the other one thawed as a 1 cell , didn't do much then divided to a 3 cell overnight. The "old" cells look dark on the photo i have of the embryo's but the "new" cells look just like the cells on the fresh cycle embryo's photo i had done, does this make a difference?
Sorry this seems long winded . Thank you so much for your time