LAUSR

Expectations play a key role in shaping sexual and relationship well-being. Across the transition to parenthood, couples navigate many changes to their sexual relationships, yet little is known about their expectations related to sex. This longitudinal study investigated how unmet and exceeded expectations for postpartum sexual concerns - assessed in pregnancy and compared to experiences at 3-months postpartum - affect sexual and relationship well-being. Data were collected from 200 new-parent couples mid-pregnancy and at 3, 6, 9, and 12-months postpartum. Mothers' unmet expectations (i.e., sexual experiences were worse than expected) were associated with their own lower sexual and relationship satisfaction at 3-months postpartum. Partners' unmet expectations were associated with their own lower sexual satisfaction, higher sexual distress and relationship conflict, and mothers' lower sexual satisfaction. Mothers' exceeded expectations (i.e., sexual experiences were not as bad as they expected) were linked to their own and their partners' higher sexual satisfaction and lower sexual distress and relationship conflict at 3-months postpartum. Partners' exceeded expectations were only associated with mothers' lower sexual distress at 3-months postpartum. Expectations did not predict change in outcomes over time. Findings provide novel evidence that expectations for one's sexual relationship are associated with new parents' sexual and relationship adjustment during a vulnerable period for sexuality and well-being.