Hey I was wondering how much I would have to lose to go down a pant/jean size. I'm 5'2" and weigh 172lbs. I'm in a size 13(juniors) right now but would like to be a size 9 by Christmas- Is this possible? I've lost 5lbs since last thursday(11/30/06) and would like to know how much more I need to lose to go down a size. Any advice is greatly appreciated. TIA