My fiancé’s bio parents are related!

Hello everyone.

I recently found out some devastating news. My fiancé’s biological parents are actually brother and sister.

I have no idea what to do. I love this man with all my heart. I just keep thinking about the kids I want to have in the future and how his genes may affect them.

He hasn’t seen or spoke to his bio parents since he was young. He never realized that it would be something he should talk to me about until recently.

He tells me everything, even things that bother him. So he wasn’t intentionally trying to keep things from me. I just honestly don’t know what to do with this information.

What would you do?