The report, "Births: Preliminary Data for 2006," also showed that births to unmarried mothers and Caesarean deliveries reached a new all-time high in 2006.
Notably, the overall birth rate also climbed to its highest level since 1971.
The report states that birth rate for teenagers aged 15-19 rose 3 percent, from 40.5 live births per 1,000 young women in 2005 to 41.9 births in 2006.
The largest increases were reported for non-Hispanic black teens, whose overall rate rose 5 percent in 2006. American Indian teens also saw a drastic rise at 4 percent. The rate rose 3 percent for white teens and 2 percent for Hispanics.
The figures reverse a consistent 14-year trend in which teen births have been declining steadily since 1991. Back then, there 61.8 births per 1,000 teenage girls.
"It's way too early to know if this is the start of a new trend, " said Stephanie Ventura, head of the Reproductive Statistics Branch at CDC. "But given the long-term progress we've witnessed, this change is notable. "
