Development of an empathetic chatbot to monitor perinatal mental health longitudinally. DPerinatal mood disorders (PMDs) are the most common health complication from pregnancy, and though treatable, most mothers with PMD symptoms never receive diagnosis or treatment. In this SBIR, BetterHope LLC (dba Poisera) will develop a mobile health app to longitudinally monitor perinatal mental health to improve detection and delivery of treatment for PMDs. The Poisera app will identify and treat PMD at earliest onset for 750,000-800,000 women each year to avoid long-term adverse health outcomes for both mother and child.