Most women want to return to their pre-pregnancy weight as fast as possible after giving birth. However, you might feel tired, sore and lack the time it takes to exercise and eat right with a new baby to take care of. Your hormones are changing so your mood may not be what it normally is either. All of these factors can affect your weight loss. However, if you eat healthy, well balanced meals with the right amount of calories and exercise as you're able to, the pounds should come off.