In Canada, approximately 368, 928 babies were born during 2024-25. The perinatal period, spanning pregnancy to 12 months following childbirth, encompasses some of life’s most substantial changes and transitions (e.g., physiological, emotional, social, familial) and involves prominent medical, psychological, sociocultural, and economic resources and impacts. Challenges experienced during the perinatal period can lead to a worsening of mental health or development of a new onset of a mental health problem.