US / teen pregnancy 1-in-5 Teen Births Not a First Child This is actually an improvement By Ruth Brown, Newser Staff Posted Apr 3, 2013 11:44 AM CDT Copied MTV's teen reality series, "Teen Mom." (AP Photo/MTV) A full 18.3% teens aged 15 to 19 who gave birth in the US in 2010 already had one or more children, reports USA Today. But before you bury your head in your hands, there's an upside: that figure is actually down from 19.5% in 2007, and 25% in 1990. More teens are using contraception, say health officials, with 91% using some form of contraception after giving birth. It's just they're not doing such a great job of it, with only 22% using the "most effective" methods. story continues below Other facts and figures from the same CDC report on repeat teen births: the highest percentage was among American Indians and Alaska natives at 21.6%, with the lowest among whites at 14.8%. The state with the highest percentage was Texas (22%) and lowest New Hampshire (10%).