This report highlights two studies that are part of the Program of Research on the Causes and Correlates of Delinquency sponsored by the Office of Juvenile Justice and Delinquency Prevention (OJJDP). The Rochester Youth Development Study and the Pittsburgh Youth Study have tracked a sample of urban males through their teenage years. These studies provide an assessment of the significant risk factors for teenage paternity, specifically the role of delinquency in early fatherhood. These risk factors come from a wide range of domains, including race, area characteristics, family structural position, parental stress, school, early sexual activity, peers, individual characteristics, and deviant behaviors. The consistency of agreement in the Pittsburgh and Rochester studies reinforces the conclusion that, while there is no single explanation or decisive risk factor for teen fatherhood, early delinquency is one of the most significant risk factors for becoming a teen father. Each study also reports additional findings concerning cumulative risk and the impact of teen fatherhood on subsequent delinquency. The Rochester study shows that an accumulation of risk factors dramatically heightens a boy's risk of becoming a teen father, while the Pittsburgh study finds that the impact of becoming a teen father may spur even greater delinquency. (GCP)