A: Dear Stephanie,

Exercise should be a regular part of your daily routine—you'll feel better, have better posture and endurance, and you'll sleep better at night. We now recommend at least 30 minutes of daily moderate exercise during pregnancy. The exercises that are safest are ones that avoid high-impact on your joints, sudden jerking motions, and ones that could lead to injuring your abdomen (e.g., contact sports). Popular exercises during pregnancy are swimming, yoga, walking, biking, water aerobics and low-impact aerobics. A well-rounded exercise program should include an aerobic component, strength training, and gentle stretching.

As far as safety is concerned, it is always wise to check with your provider before embarking on an exercise regime. Realize that your ligaments loosen during pregnancy causing your joints to be more vulnerable to injury. Your growing abdomen will change your center of gravity and affect your sense of balance. And the extra weight will cause more strain on your back. A maternity support belt can be helpful to give you extra support later in pregnancy. You should keep well hydrated and avoid overheating. If you feel pain, shortness of breath or faintness during exercise, stop what you're doing and contact your health care provider.