By the age of 43, Jamie Rhein of Columbus, Ohio, thought it was unlikely she'd have a baby. "I had never gotten pregnant," says Rhein, whose adopted daughter was then 9. "My husband and I had been going our merry way with unprotected sex for years." But when Rhein started craving Whopper Jrs., she knew something was up. At an age when many women were parenting teens, she was preparing for a newborn. "I went from shock to being pleased with the idea," says Rhein, now 49.