Post-partum interval and time to pregnancy in a prospective preconception cohort.
Sydney K WillisElizabeth E HatchAmelia K WesselinkKenneth J RothmanEllen M MikkelsenKatherine A AhrensLauren A WisePublished in: Paediatric and perinatal epidemiology (2020)
Among North American pregnancy planners, long post-partum intervals (≥48 months) were associated with slightly reduced fecundability. Short post-partum intervals (<12 months) were weakly associated with reduced fecundability in some subgroups including women with a history of caesarean delivery and planned pregnancies.