Gender Question
Posted: Mon Oct 05, 2015 1:29 pm
I recently learned that the sperm donor I used has 7 known male progeny and 1 female (a twin with one of the boys). In addition to the sperm donor, I also used an egg donor and we had many highly rated embryos. My son was born on the 3rd transfer (one embryo each transfer). I donated two of my extra embryos to another couple and they transferred the two embryos during one procedure and ended up with one son. From my research I understand the predominance of one gender over another in the family tree has a male genetic component but I am curious if this due to the actual number of sperm with the Y chromosome, or is there some other component in which female embryos are produced but simply don't implant? Perhaps explaining why it took me longer than I expected to get pregnant… I am very happy with just one child so am asking this question purely out of my curiosity as all of my extra embryos will be given to other families. Thank you!