I think my mom thought I was doing a lot more than I really was for quite a while.

I told her about a year after I lost my virginity, and she had assumed that I'd slept with my first (serious) boyfriend and just never told her. She had no idea I'd "held out" so long.

She's a little more comfortable talking about it than I am, so we generally avoid the subject... I know it's going to get mega-uncomfortable when we start trying for a baby.