Provide lifestyle-based intervention to adults who are pregnant and postpartum, participating in a clinical trial with prenatal home visiting programs in Maryland. Provide health coaching virtually over video or phone, with an emphasis on healthy eating, exercise, and overall wellness, including stress, mood, and sleep management. Lead behavior change sessions on health and wellness during pregnancy and postpartum. The Health Coach will report to the Health Coach Manager and work with the study team to facilitate study-related goals.