This course provides clinicians with a comprehensive overview of the complex interplay between perinatal mental health and substance use during pregnancy and the postpartum period. Participants will learn to recognize key risk factors, assess co-occurring presentations, and apply evidence-based interventions that support the safety and well-being of both parent and infant. Through current research, case examples, and practical clinical tools, this training equips providers to deliver compassionate, informed care to individuals navigating mental health challenges and substance use in the perinatal stage.