In a new report, the CDC has confirmed that the average age at which American women deliver their first babies has increased in the last 40 years. The World and The Forum at the Harvard School of Public Health team up this week to discuss the repercussions of delaying pregnancy and parenthood in the United States and around the world.In a new report, the CDC has confirmed that the average age at which American women deliver their first babies has increased in the last 40 years. The World and The Forum at the Harvard School of Public Health team up this week to discuss the repercussions of delaying pregnancy and parenthood in the United States and around the world.