Mid way through our first cycle of IVF. They retrieved 6 eggs and 4 fertilised. The embryologist called me on day 3 and said all 4 embryos were high quality (at least 10 cells and minimal fragmentation) and so they could keep them until day 5 or 6. I am due an update tomorrow am and probably ET tomorrow afternoon or Friday (day 5 or 6) and just trying to set my expectations for the news tomorrow. How many usually die between day 3 and 5? If we do have at least one left, what are my chances of it sticking? I've gotten so pessimistic that I've sort of ruled out it working. Should I assume it's not doing to work or should I be more hopeful?