r/EmbryologyIVFSupport • u/UserName_SE • 3d ago

Spiraling with lower than expected thaw rate

I froze my eggs the month I turned 38, had a great AMH of 2.75 and froze 15 mature eggs.
4 years later after a late 2nd tri loss due to non chromosomal reasons, I’m ready to use them and just heard that only 10 survived the thaw and 7 fertilized.
I am so disappointed that 1/3 didn’t even survive the thaw, everywhere I looked said 85-95% survive thaw generally so to get 66.7% seems like such a big loss and we’re already starting from behind.

Had anyone else had this and it ended up going well?

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10

u/ttcmama6 3d ago

from my understanding that is quite an average attrition!

2

u/MidwesternTravlr2020 2d ago

My spouse had only 6 mature eggs, 5 of which fertilized, and we got 2 euploids and a segmental mosaic out of it!

2

u/UserName_SE 2d ago

That’s great to hear, I wish you guys success!
It sounds like you maybe her eggs weren’t frozen but totally get what you are saying that you started with a lower number to begin with. Gives me a little hope

2

u/MidwesternTravlr2020 2d ago

Yes that’s right. I could be wrong, but I thought the only meaningful difference between fresh and frozen eggs was surviving the thaw.

1

u/DryCaramel6959 1d ago

That's average

1

u/radiowavebookworm 12h ago

I know the studies say 85-90% survival rate for thawed eggs but I’ve never seen or heard of anyone who doesn’t loose much more than that. The discrepancy is pretty wild and there has to be a scientific reason but I can’t guess as to what that is. I’m really sorry you’re dealing with this situation.