A greater number of women are choosing to exercise in pregnancy as the recommendations by the American College of Obstetrics and Gynecology (ACOG) and other organizations have changed in recent years. Exercise during pregnancy can be beneficial to the health of the fetus and mother. Physicians should be aware of the contraindications to exercise, the warning signs to terminate exercise, and the latest recommendations by the ACOG. In the absence of contraindications, the authors believe that physicians should help to develop a reasonable exercise protocol for women based upon their previous activity levels. It is incumbent upon physicians to be aware of the unique physiologic factors present during pregnancy that may predispose women to injuries. Treatment of injuries sustained during pregnancy must balance the risks to both the mother and fetus.