Coparenting conflict moderates the association between maternal prenatal depressive symptoms and infant regulatory capacity

As a development‐enhancing or a risk‐promoting environment, coparenting may shape the association between maternal prenatal depressive symptoms and infant regulatory capacity. This study aimed to analyse the moderator role of coparenting cooperation and conflict in the association between maternal prenatal depressive symptoms and infant regulatory capacity at 3 months. The sample comprised 103 primiparous couples (N = 206 parents) and their 3‐month‐old infants (53.7% female). Mothers reported on depressive symptoms at the first trimester of pregnancy, and both parents reported on coparenting, and infant regulatory capacity at 2 weeks and 3 months postpartum. Higher levels of maternal prenatal depressive symptoms and higher levels of coparenting conflict reported by parents at 2 weeks postpartum were associated with lower infant regulatory capacity at 3 months. Coparenting conflict at 2 weeks postpartum accentuated the association between maternal prenatal depressive symptoms and infant regulatory capacity at 3 months. The results support a view of coparenting conflict as a risk‐promoting environment that can accentuate the association between maternal prenatal depressive symptoms and infant regulatory capacity. Infants in families with mothers with elevated prenatal depressive symptoms and with high levels of coparenting conflict may be at high risk of low regulatory capacity.