Pregnant and parenting immigrant, migrant, and refugee women are navigating a landscape marked by uncertainty, fear, and systemic exclusion—conditions that profoundly affect their physical and mental health during the perinatal and postpartum periods and throughout their lifespan. Amid increasingly punitive immigration policies, including family separation, detention, and deportation without due process, these women and their families face extraordinary challenges that endanger their mental health and wellbeing and that of their children. Compounding these harms are policy barriers such as the public charge rule, attacks on birthright citizenship, and exclusion from health coverage and other vital services. These stressors contribute to a growing but under-recognized crisis in maternal mental health, with long-term consequences for families and communities.