Men having babies? Thomas Beatie is a new father... (or mother? or both?)
Women this age in Oklahoma* are (very) often great-grandmothers...
*I only mention Oklahoma because it's the last place I lived in the US. In my senior year, I sat next to Janet every day in journalism class... Sometime around April, she came in one morning very clearly pregnant. She'd waited until her 18th birthday to tell her parents. (She misunderstood the law about statutory rape.) She had her baby in June or July - that baby would now be almost 23 years old... My guess is that Janet's already a grandmother.