The US birthrate hits another record low; even women in their 30s are having fewer babies

America's birthrate hit yet another record low in 2017, as mothers in nearly all age groups gave birth to fewer babies last year than they had the year before, according to the Centers for Disease Control and Prevention.

The U.S. birthrate has been falling for several years, led by declines among younger women in their teens and early 20s who seemed to be putting off motherhood until they were older. But in 2017, women in their 30s joined the