Exercise alone won’t help you lose the baby weight. In fact, exercise could, in a strange way, be making your eating habits more reckless. One theory suggests that people often end up consuming more calories than they need after a tough workout because they feel they’ve “earned” the right to overindulge. Don't let that be you. With your doctor’s OK, here are six ways to cut calories with minimal effort—and without feeling hungry or depriving your baby.