I had my 2nd Ivf transfer on Monday. I only had 2 eggs which both fertilzed. My retrieval was at noon on Friday and my transfer was Monday at 9:30. Bad news is only one grew and at the time of transfer it was only 4 cells

Does anyone since it "technically" wasn't 3 days if the embryo could of not yet divided into 6 or 8 cells?
Thanks