...getting a phone call from a long lost love who tells you that you have a child you didn't know about?

Sometimes I think about the women I was with when I was in college, before I got married. Protected sex wasn't something that I always practiced. While I have since tested myself to ensure that I don't have any STDs (thankfully, no), I sometimes wonder if I am the father of a child that I was never told about. Or, worse, got someone pregnant and she had an abortion without my knowledge.

This entire thing never used to bother me. Maybe it is that I am older and more mature now (???) that makes me think about it.

What say you, Pixie people? Do you have a similar paranoia? Or, are you someone who conceived a child but decided never to tell the father about it?