 During this phase of the project the investigators will conduct a two-site pilot randomized clinical trial with pregnant women at high-risk of perinatal depression, comparing the efficacy of MBCT-PD to a control group in the prevention of depressive relapse and recurrence. Participants assigned to the control group will receive ongoing assessment and referral OAR, consisting of routine screening and referral to behavioral health services within obstetric clinical settings within Kaiser Permanente KP in Colorado and Georgia. The investigators will randomly assign participants at each site to 8 weeks of MBCT-PD or OAR. 