I've found this summer's Olympics to be very encouraging. Though the gymnasts are mere babes, there are many other highly competitive athletes at these games that are still older than me AND they have a child!
Photos of Olympic Moms
Now add to that list yesterday's winner - by a lot! - of the women's marathon, Constantina Tomescu. In addition to having a kid, at 38, she was the oldest competitor to ever win this event.