There are enough of my friends from high school that have babies that I can no longer count them on one hand. If you add the number of people that are married or engaged, it probably exceeds all my phalanges. I graduated with 406 other people, so that's 5% of my graduating class that has reproduced or is on its way to reproduction.
I am by turns horrified (what? how could any of us possibly be mature enough to handle being parents?!) and guiltily jealous. (babies are cute! and so tiny. and beautiful.)