Associations between fetal movement and maternal-fetal attachment in late pregnancy.

Maternal-fetal attachment (MFA) represents the evolving psychological bond between a pregnant person and their fetus, reflecting early emotional investment and expectations of the maternal role. Maternal awareness and response to fetal movement are key components of MFA, suggesting that fetal activity may serve as a meaningful cue in the development of maternal representations of the baby. Previous work shows that engaging in fetal movement counting significantly enhances MFA scores, and mothers who perceive greater fetal movements have higher MFA scores compared to those who perceive fewer movements. However, it remains unclear if this association reflects perception alone, or whether associations between objective fetal movement and MFA exist. Therefore, we objectively measured fetal movement alongside MFA in 51 pregnant women (mean age 28.9 years, SD = 6.0) in their third trimester (mean gestational weeks 36.7, SD = 2.2). Fetal movement was objectively measured with a Toitu MT-516 fetal actocardiograph and MFA was assessed using the Prenatal Attachment Inventory-Revised. Greater fetal movement was associated with higher MFA scores, independent of maternal mood, parity, knowledge of fetal sex, and gestational age. Taken together, these findings underscore the relevance of fetal movement within the psychology of pregnancy, suggesting that fetal movement outside of maternal perception may function as a communicative signal to enhance MFA. As maternal-fetal attachment is linked to postpartum bonding and caregiving, understanding these prenatal associations provides insight into how early psychological and relational processes shape postnatal development across the perinatal period.