A recent Pew survey also finds one in five 18- to 34-year-olds is putting off having a baby due to the recession.
A report by Demographic Intelligence estimates that 1 million babies have been postponed since the recession started. The overall average age when most women have their first child has risen from 21 to 25.
Debt is playing a role in delaying the start of a family. Because of credit card bills and student loan debts, couples have less saved.
While economists say birth rates will likely go up as the economy improves, some also say policy changes and access to contraceptives may play a role in the declining birth rates, The Huffington Post reports.
WTOP’s Veronica Robinson contributed to this report. Follow WTOP on Twitter.