Adverse childhood experiences, or ACEs, include experiences of abuse, neglect, and household dysfunction. ACEs put people at risk for a number of negative health outcomes across their lives. In particular, ACEs can have lasting consequences for mothers and their infants. Studies from our lab have found associations between ACEs and poor maternal-child health outcomes such as gestational diabetes, mental health difficulties, and premature birth. These health and mental health difficulties put mothers and children at risk of current and future health difficulties, making ACEs one of the leading health risks of our time. Currently, in Calgary and Alberta, primary care settings have begun to screen for ACEs. Despite this screening, there is a lack of evidence as to whether screening for maternal ACEs adds to the identification of health risk in pregnancy and the postpartum above and beyond current mental health screening tools. Furthermore, it is unknown whether screening for and educating patients about ACEs has an impact on maternal and child health outcomes.