The CDC reports that the overall birth rate fell a little less than 1% after a slight overall rise in 2014. The timing pattern remained the same as it has generally since 2008, with births to women under 30 continuing to fall, and births to women 30-44 continuing to rise. For full details, see: http://www.cdc.gov/nchs/products/databriefs/db258.htm
When younger women put off having kids, it makes sense that they start having them later. They report:
- Teen birth rates fell 8% to 22.3 births per 1,000 women, rates for women aged 20–24 fell 3% to 76.8, and rates for women aged 25–29 declined 1% to 104.3 (Figure 2).
- The birth rate for teenagers declined 46% since 2007, when a brief uptick was observed for this age group.
- In contrast, birth rates for women aged 30–44 rose from 2014 to 2015. Rates rose 1% to 101.5 births per 1,000 women aged 30–34, 2% to 51.8 births for women aged 35–39, and 4% to 11.0 births for women aged 40–44.
- Since 2007, the largest increase was for mothers aged 40–44, up 15% compared with rises of 9% for women aged 35–39 and 1% for women aged 30–34.
After younger women delay having kids, to finish their schooling and establish at work, among other things, it’s not surprising that they start having them later.