FIRST-TIME MOMS IN THEIR 40s

40 really is the new 30 ... The number of babies born to women 45 and older has more than tripled in the past 20 years, and the average age of first-time moms has gone up in every state in the country.

"This is no blip. This is a seismic shift. There is no question," said social psychologist Susan Newman. "I think the opening up of careers and jobs for women, actually paved the way more than anything else."

"Forty is the new 30," said Dr. Joanne Stone, director of Maternal Fetal Medicine at Mt. Sinai Hospital in New York City. "Everybody's older. If you have somebody that's 28, it's like a teen pregnancy."