I had my last child at 40. My friends are in a different place than I am, but my son keeps me young.

Courtesy of Jamie Davis Smith

I always knew I wanted a big family, but I wasn't in a rush to get started. When I got married in my mid-20s, after a prolonged time in school earning two graduate degrees, I wasn't quite ready to have children. I wanted to become more established in my career, pay down student loans, and travel before kids entered the picture.