Fertility Changes Over Time

If you’ve been trying to get pregnant, you may be surprised at how long it can take. While women tend to be most fertile in their 20s, many in the U.S. have been waiting longer to start their families. Census data show that the median maternal age at birth rose to 30 in 2019, up from 27 in 1990. Births to women in their 20s fell dramatically during that period, while births to women aged 30–44 rose even more sharply.