Out-of-wedlock births in the United States have climbed to an all-time high, accounting for nearly **four in 10 babies** born last year.

While out-of-wedlock births have long been associated with teen mothers, the teen birth rate actually dropped last year to the lowest level on record. Instead, births among unwed mothers rose most dramatically among women in their 20s.

[Read](http://www.usatoday.com/news/health/2006-11-21-births_x.htm?csp=34 “Read the Story”) (AP via USA Today)