This is through the grapevine. I thought they said 20% likelihood, not 20% higher likelihood. But this isn’t me and I don’t know the numbers well.

I do know that this woman chose to not use her own eggs for their child. And you would think that going from 1-1.2% would not make you do that. Perhaps there is another variable involved that I am unaware of. Her sister developed it after their parents divorce in her 30s fwiw.