John Bowlby’s theory of human attachment has become widely applied across disciplines and across the stages of human development. This discussion explores the evolution of an application of Bowlby’s theory to the experience of pregnancy, from both maternal and paternal perspectives. Although the theoretical construct of maternal-fetal attachment (MFA) requires continued theoretically-driven research, existing studies have associated this proposed construct with health behaviors, marital relationship, depressive symptoms, and the postpartum mother-infant relationship, pointing toward its relevance for academicians and clinicians devoted to the service of women and infants. This is a scientific article on Bowlby’s theory of attachment. Click on the title and it will take you there.