Based on ihe presumed mood-regulatory properties of the problem orientation component delineated in the social problem-solving model, a positive problem orientation was predicted to influence ongoing levels of positive and negative affect during pregnancy. Higher levels of positive affect and lower levels of negative affect would then in turn predict depression during pregnancy and in the poslpartuin period. This hypothesis was tested in 100 women. Path analyses supported the predicted relation of the problem orientation components to trait affectivity, and indirectly to peripartum and postpartum depression. Trait negative and positive affectivity was also associated with peripartum depression, and indirectly with postpartum depression, as expected. Implications for the integrated social problem-solving model are discussed. Recommendations for assessment and counseling inten-entions with expectant women are offered.