A 5-day embryo is equivalent to a gestational age of 2 weeks and 5 days. At the close of the two-week wait between transfer and beta pregnancy test, you could be up to 5 weeks pregnant, depending on the age of your embryo at transfer.

How do you calculate weeks after embryo transfer?

Using this calculation method, you count out 38 weeks from the date of the embryo transfer, and then subtract the age of the embryos. For example, if a 3-day embryo transfer is performed, you would count out 266 days, and then go back three days.