Primary outcomes include diagnoses of postpartum common mental disorders. Secondary outcomes include symptoms of anxiety and of depression, and birth outcomes including small for gestational age, low birth weight and preterm birth. ...ETHICS: Ethics approval was obtained from the Johns Hopkins Bloomberg School of Health Institutional Review Board Baltimore, USA , the Human Development Research Foundation Ethics Committee Islamabad, Pakistan , the RMU Institutional Research Forum Rawalpindi, Pakistan and the National Institute of Mental Health appointed Global Mental Health Data Safety and Monitoring Board. ...