American women continue to delay having children, according to new data from the Centers for Disease Control and Prevention.
The average age for first time mothers increased from 24 in 2000 to 26 in 2014.
The age of first time mothers can affect the total number of births a mother has over a lifetime, and also impacts the growth of the U.S. population.
Women over 35 have a greater risk of miscarriage, high blood pressure and other medical conditions – and their babies are at a greater risk of chromosomal abnormalities such as Down syndrome.
Researchers believe the trend of waiting to have children will continue, as more women focus on career before starting a family and as they pursue fertility options like egg freezing.