How do you schedule follow-up visits for pregnant patients with a history of depression, both during pregnancy and in the postpartum period?

Patients with a history of major depressive disorder are at increased risk for postpartum depression. How does your visit frequency change across trimesters? How soon after delivery do you aim to see patients? How long do you maintain closer follow-up given the risk for postpartum depression? What clinical factors, such as severity of prior episodes, influence your scheduling decisions?