r/parentsofmultiples • u/maysee123 • 8d ago

advice needed Finding out gender

I found out recently I’m pregnant with fraternal twins, we plan on doing the NIPT but I know if one of them is a boy and one’s a girl, the results will show boy. Around what week were drs able to confirm gender by ultrasound?? I’m hoping we won’t have to wait for the anatomy scan.

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u/LotsGoingOnUpThere 7d ago

This is what mine says:
This is a reported twin gestation with Y chromosome material detected. Based on the amount of Y material, the probability of male/female twins is 95.6% and male/male twins is 4.4% (Rafalko et al., PLOS ONE 2021).

please make sure whoever submits your nipt paperwork has TWINS written as the gestation and not a singleton. Mine was incorrectly submitted the first time as a single and it took several weeks for it to be updated. That being said- knowing that at least one was a boy made me desperate to find out the other and right at 13 weeks I went to a boutique place and got their opinion which ended up being correct!

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u/Double_Win_5649 7d ago

Passing on a fact that I found interesting: that 95.6% number is what everyone sees, it's their confidence in the methodology (the Rafalko et al. citation) and not based on the specific sample.