Teenagers in the United States:Sexual Activity, Contraceptive Use, and Childbearing, National Survey of Family Growth 2006-2008

This report presents national estimates of sexual activity, contraceptive use, and births among males and females 15-19 years of age in the United States in 2006-2008 from the National Survey of Family Growth (NSFG).
As previous data showed, having first sex at a younger age within the teen years is associated with more negative circumstances and consequences. Females who were younger at first sex are more likely to report it was unwanted; both females and males who were younger at first sex are more likely to accumulate higher numbers of sexual partners and have more partners within a recent time frame.