Right after retrieval we were told that they had managed to collect 24 eggs. This seemed like a great number to me, and we expected to get a good haul as I was young and had responded to the medication well. Twenty-four seems like a huge number, and comparably it is, but during each stage of development, you can expect about 30% drop off. So from our 24 retrieved, not all would fertilize, and not all of those would develop, and not all of those would reach the 5-day blastocyst stage which is what’s required for transfer.