The risk of symptomatic venous thrombosis during pregnancy is between 0.5 and 3.0 per 1,000 women. Pulmonary embolism (PE) is a leading cause of maternal deaths in the United States. During pregnancy women have a five-fold increased risk of venous thromboembolism (VTE), compared to non-pregnant women. The prevalence and severity of this condition warrants consideration of anticoagulant therapy in pregnancy for women at risk for VTE. The purpose of this document is to review the current literature on the prevention and management of thromboembolism in obstetric patients. It offers evidence-based recommendations to address the most clinically relevant issues in the management of these patients.