The Detroit News. First, don't stop exercising.
Exercise can reduce fatigue, backaches and ankle swelling during pregnancy.
Exercise also improves the ability to handle the physical demands of carrying extra weight and allows you to feel that you have some degree of control over your body during a time when profound physical changes occur. If your doctor agrees, stick with exercising. The most important change is decreasing how hard you exercise. If you now enjoy high-intensity workouts, starting today, dial down to a moderate pace. If you train at a moderate pace, stay there for the next 9 to 12 weeks, then back off a bit more.