Psychological distress, defined as depression, anxiety and insomnia, in this study, often increases during the postpartum period and can negatively affect maternal mental health status, maternal and family functioning, and infant-child outcomes. These conditions commonly present as co-morbidities, but are often unrecognized in clinical practice or under-treated as co-morbidities in new mothers. This unrecognized cluster of co-morbidities may lead to psychological distress and subsequently poor outcomes for mothers, their infants and children.