Low Fertility

From the National Center for Health Statistics:

The provisional number of births for the United States in 2017 was 3,853,472, down 2% from 2016 and the lowest number in 30 years. The general fertility rate was 60.2 births per 1,000 women aged 15–44, down 3% from 2016 and another record low for the United States. Birth rates declined for nearly all age groups of women under 40, but rose
for women in their early 40s.