The goal of this pilot study is to evaluate the acceptability, feasibility, mechanisms of action, and efficacy of Center M. Center M is a group-based, mindfulness-based Cognitive Behavioral Therapy (CBT) intervention to treat Perinatal Depression (PD). Pregnant participants will be surveyed at three time points: pre-intervention, post-intervention, and 6-weeks postpartum. Surveys will include self-report measures evaluating depressive symptoms, mindfulness skills, emotion regulation, and participant satisfaction.