Objectives: Examine frequency, timing, and reasons for maternal postpartum rehospilizations and acute care visits 1 year postpartum after a high-risk pregnancy. Study design: Secondary analysis of data collected during a randomized clinical trial of advanced practice nurses giving transitional care for women with high-risk pregnancies. The 171 women were primarily African American, never married, Medical eligible, diagnosed with pregestational diabetes (20), gestational diabetes (23), either diagnosed (48) or at risk (44) for preterm labor, and chronic hypertension (36). Results: Of the total rehospitalizations (17%) and acute care visits (32%), over one third occurred in the first 8 weeks postartum. Chronic hypertensives and gestational diabetics had the highest rate of rehospitalization and proportion of acute visits. Six women were rehospitalized for subsequent pregnancies. Conclusion: Women with high-risk pregnancies have continued high health care resource use over the first postpartum year demonstrating the need for more intensive patient education and follow-up to improve outcomes and reduce resource use.