METHODS: Associations between pregnancy involvement, risk behaviors and sexual abuse were examined in sexually experienced teenagers from the Minnesota Student Surveys of 1992 (N=29,187) and 1998 (N=25,002). Chi-square tests assessed differences in pregnancy involvement and related risk behaviors among four groups of adolescents, categorized by type of abuse experienced: none, incest only, nonfamilial only or both. Odds ratios for pregnancy involvement and risk behaviors, adjusted for grade level and race, were calculated for each gender by using logistic regression analysis.