The weekend Brit and I announced our pregnancy with Thea, my dad discovered and connected with several of his donor-conceived kids for the first time. Back up: in dental school, my dad was a sperm donor. He was also dating my mom — a psychology grad student working toward her LCSW — at the time. She knew. And she wasn’t just fine with it, she thought it was beautiful. Fast forward thirty years. My wife and I went to a sperm bank, found our own donor, and got pregnant — and none of it triggered any memory of this for my family. That’s how at peace this chapter was for my parents. It wasn’t a secret. It just wasn’t top of mind, until the same weekend we announced our pregnancy, it suddenly was. Today, I have twelve biosiblings. We’ve met them all. We love them. We do an annual reunion, and smaller get-togethers scattered throughout the year. People hear this story and go straight to my dad. But I’ve always credited my mom. She was a 20-something-year-old dating a guy in dental schoo...