I was fourteen when I lost my virginity. I just really wanted to have sex with someone. It happened. Who cares? I don't. Even now... if I want to have sex and I find someone willing, why not? Yes, I get the whole, "oh, but you need to be in a caring relationship" spiel. But I don't want a relationship. I'm happy and content with myself.
Granted, when I was a teen and had sex, there was a time when I had this notion that the person would like me. I had low self-esteem. I learned. I grew. I wouldn't be where I am today if I hadn't done all that. I am happy where I am today. I don't regret it.