The present study examined the relationship between concurrent measures of adolescent fathers' parenting stress, social support, and fathers' care-giving involvement with the 3-month-old infant, controlling for fathers' prenatal involvement. The study sample consisted of 50 teenage father-mother dyads. Findings from multivariate regression revealed that fathers' parenting stress was significantly and negatively related to fathers' care giving as perceived by both fathers and mothers. The relationship between support for father involvement provided by the young man's parents and father reported care-giving involvement approached significance. Social support from both teenagers' parents buffered the negative influence of parenting stress on fathers' involvement with the baby. Policy and intervention implications are discussed.