Inclusion Criteria:  Aged 18 years or older, receiving prenatal care at one of the 4 participating health systems 12-24 weeks gestation >= 1 prior episode of major depressive disorder, self-reported Current Patient Health Questionnaire 9-item (PHQ9) depression score <=9. Have internet access through home computer, smart phone, or similar device  Exclusion Criteria:  Non-English speaking Past history of a psychotic, bipolar disorder, or substance misuse disorder within the past 6 months Immediate risk of self-harm PHQ9 score <5 or >9 Patients who are on the "do not call" list for research