The fertilization report was called to me this morning. Apparently the count of 10 eggs was not just the mature ones, but all eggs retrieved. =( There were 2 immature eggs, leaving 8 mature ones that they could try to fertilize. Fertilization rates are normally around 70%, and slightly less with ICSI. ICSI is where they inject a single sperm into each egg and is done in case of male infertility, such as ours. So, with 8 eggs, we could expect 5 or maybe 6 to fertilize. The bit of good news is that we had 100% fertilization, meaning we have 8 fertilized eggs, or 1-cell embryos as of this morning.
What happens next?
Our nurse had said she expected us to do a day-3 transfer because of the low number of eggs we retrieved yesterday and the expectation that only 5 or so would fertilize, and that several would arrest in their development between fertilization and transfer. However, the embryologist that called me this morning advised that we would probably be a go for a day-5 transfer since they all fertilized. Only time will tell how many make it, and thus what day we do the transfer and how many we transfer. We will be getting a call each morning for the next several days to let us know how many embryos are still dividing and viable. I'll keep you posted, dear readers.