That can happen when you work out. I just posted in another post. You can actually stay the same or gain a little weight when exercising, but go down in sizes. Remember the scale is just one way to measure weightloss success. Our health and how are clothes fit are another (losing inches). Keep exercising, drink lots of water and don't give up. Plus, if you haven't been eating your activity or any of your 35 extra points, you might want to use a few. Sometimes our bodies won't lose when they don't get enough fuel. Good luck!