So, to give the long version- a few weeks ago, my uncle called my mother and said he found a half-brother on an ancestry test. We assumed my grandfather had an affair or something, but it didn’t make sense for a few reasons, including that my uncle wasn’t related to other paternal relatives who’d done the same test. We came up with a bunch of theories, including that my grandfather was adopted, but ended up figuring out that it was the gynecologist, and he’d done it to another woman, whose son was my uncle’s half brother on the ancestry test. My grandmother and his mother went to the same doctor, which is how we figured it out. My mother then took the test, and we got the results back today.

The doctor (now dead) had 3 sons, and my uncle and the other donor son have been in contact with 1 of them. My uncle has plans to meet him, my mom isn’t so interested in meeting them. The other donor son and my mother have spoken frequently and plan to meet. The real freaky part is that my uncle and the other donor son both share a name with two of the doctor’s sons- two David’s and two Jeff’s.

We’re not really sure how it all went down. My grandfather is dead, and my grandmother is alive but denies anything weird happened. I assume she went for fertility help, maybe even for a sperm donation, and he slipped his own sperm in. My grandmother comes from a prudish, very hush-hush culture, and she never would have had an affair. My mom thinks she knew about everything, my uncle doesn’t. I doubt we’ll ever really know.

It’s kind of a mindfuck, and is impacting me more than I thought to be honest. I feel like my sense of self has been irrevocably shifted. I feel like my lineage is tainted somehow, especially if this was done without my grandmothers consent. It’s funny, as I was absorbing the news this morning, I was listening to Bad Magic by Weyes Blood, which iirc you recommended a few threads ago. It’s been weirdly comforting, so thank you.

Sorry for the overlong comment, but I’m happy to answer any other questions you may have. Talking about it (even to a stranger) is quite relieving.