I had sex for the first time yesterday, and even though we used a condom I can't help but be paranoid. It was with a guy that I'm not dating, but I've trusted for years, and he supplied the condom. He said it was a good condom and I want to trust him, but I can't help but wonder if there could've been a hole in it. I know I'm probably being irrational but I get worried easily. I guess I'm just looking for some reassurance?