Hi i had my baby a year ago and i started losing weight. i have lost 20lbs and have 40 more to lose and noticed my stomach skin getting lose and saggy. i am considering laser tightening. i wanted to do it as i am losing weight so my skin can keep up with my weight loss. i don't know if that is wise or i should just wait till i lose all the weight, then do it. will the results be the same? thank you