We know that egg survival is not indicative of egg quality and therefore we take the additional step of guaranteeing a good quality embryo by day 3. The Donor Egg Bank USA network provides only mature eggs for sperm insemination. If all eggs available in the egg lot are thawed and fertilized, we guarantee at least one or more normal developing embryos will be available for transfer by day 3, unless there is a significant known male factor which would prevent normal embryo development.
In 54% of egg thaws, sufficient embryos have been available for both a transfer and an additional embryo freeze. In the unlikely event, that a good embryo is not available by day 3 (and that embryo doesn't convert to a blastocyst by day 6), then clients electing the Single Cycle Financial Plan will be provided a new egg lot and for clients in our Assured Refund Plan, the cycle will not count as one of the 6 attempts.
We offer this assurance not only for your peace of mind but because we are confident in the quality of the donor eggs provided in the network. We also make this assurance available to all programs in the network and not just a select few.