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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]Are there ever multiple embryos of the same health and quality but different sex? If so, would a lab then let you pick? Or are there usually differences in strength and potential viability? We have a boy, I want another boy, and I bet a lab tech might pick girl to balance things or because they assume I want one....[/quote]

Yes, I had multiple embryos frozen and knew how many of each sex were “normal” aka passed PGT testing showing they had a matching set of chromosomes. I was allowed to indicate which sex embryo I wanted implanted or I could have chosen to not select. In which case, I think the lab tech picks one. It does not matter what the embryo looks like - all that matters is the PGS “normal” or “abnormal” stamped on the vial (or barcode in my situation)! [/quote]

Not exactly true, at least at SGF. All embryos are given grades (as well as PGT/S testing if you want it), and generally are transferred from best grade to lowest grade. I don't know if SGF lets you choose gender- we knew we wouldn't so it was never a conversation. To the earlier question of "same health/quality", we've transferred from best grade to "lowest" grade, but all of ours except one had the exact same grade.[/quote]

I don't understand your post.  The last time I did IVF was 3 years ago, but at the time, certainly, the ONLY way for you to know the embryo sex was if you did a full karyotype testing.  The embryos come out of this as PGS-normal and PGS-not normal.  There are no other grades, as far as I remember.  If you opted against PGS testing and your tech is transferring a best-graded (best-looking) embryo, then they don't know the sex either.

In our case, three years ago we PGS tested the whole batch of embryos we produced, and then out of the PGS-normal pool, selected the sex we wanted.  Certainly, not everyone ends up with enough PGS normal embryos to choose from, but if you do have enough, SGF lets you choose the sex.[/quote]

Embryos are graded based on appearance.  The normal grading system is two letters (AA, AB etc).  This type of grading has been going on since long before PGT-A existed (which by the way is definitely NOT full karyotyping, they just look to see if the sample has the right number of chromosomes).  When choosing among normal embryos, more highly graded embryos have better odds of success.  The PGT-A is the most important factor for sure, but grading seems to matter too.[/quote]

I know how they are graded (in the absence of PGT) but if grades is all you have, you won't have the gender info either so the whole discussion is moot. [/quote]

Yeah but that’s not the scenario we are talking about.  The scenario here is transfer order for PGT-A tested normal embryos.  The normal transfer order would be best graded to worst graded, even among normal embryos.[/quote]

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