I’m not sure what I would do but when I started dating my husband, we’ve been together over 20 years now, he told me on the 3rd date he was missing a testes from a horrific accident when he was younger that he almost died from. I think he told me because we we’re going away on a weekend trip to a friend’s house and he didn’t know what was going to happen but nothing happened because I wasn’t ready! It didn’t matter to me because I had already started having feelings for him. You need to play this by ear and how you feel about the person. If it’s a brand new person in your life, maybe wait until there are feelings but if it’s someone you already know, you may feel more comfortable with the conversation. Good luck!