In the present study, we integrated cross-sectional findings on the relation of early paternal feelings and competencies against the background of a theoretical model on determinants of parenting in a sample of 104 socially disadvantaged firsttime parents at 6 months postpartum. Participants reported about mental health characteristics, partnership satisfaction, parental self-efficacy, and attachment feelings. Results indicate a reasonable fit of the proposed model, with interrelations between maternal mental health, paternal partnership satisfaction, and mental health. Furthermore, fathers' partnership satisfaction positively correlates with paternal feelings and competencies.Our results underline the role of fathers' partnership satisfaction and mental health for his parenting competencies at 6 months postpartum. The study represents a useful starting point for future longitudinal research on fathering and the unique father-infant relation of fathers within the first year postpartum.