The Pregnancy and Postpartum Mental Health Optimization Virtual Intervention Network

Inclusion Criteria: 1. Adult (age 18 years or older) 2. Pregnant or postpartum and living with their infant 0-6 months old. This includes all individuals who identify as women, as well as those of female sex who do not identify as women (e.g., non-binary, trans) who are the primary parent for their infant. This includes via natural birth, adoption, or surrogacy. 3. EPDS score \>10 at eligibility screening. Exclusion Criteria: 1. Active alcohol or substance use disorder, mania or psychotic disorder (as these conditions are better managed in direct specialty care). 2. Active suicide plan or intent (as emergent hospital-based care is likely required), 3. Plan to move out of Ontario during the study. 4. Unable to complete relevant study procedures and measures online. For the few participants without access to devices/home internet, we will budget for tablets/data plans. 5. Unable to complete study activities in English. Note that Google translate is available for the intervention platform and language lines are available for participants so that they can be served in their language of choice, however we are unable to provide translations of all study assessment and questionnaire materials that participants will need to complete during the study. 6. No primary care clinician (required for collaborative mental health care delivery model). 7. Currently enrolled in a collaborative mental health care model.