Not losing
It's very normal for your weight to fluctuate, even sometimes going up a little. During my second week post op I checked my weight every day and saw this happen for myself. Over a few days, I was down three or four pounds, then up a pound or two and then down like five or six pounds overnight. Since then, I've read on these boards to only check your weight once a week and I think that's sound advice.
If you follow your eating rules and getting your fluids and protein in you will lose the weight. Put the scale away!
My surgery was on 8/4. At about 2.5 weeks out, I had lost 20 lbs. and hit a plateau. I stepped up my protein and water, and started working out. To my amazement, I GAINED 2 lbs!!! To keep from freaking out, I pulled out the tape measure and measured my waist. That was a relief. I realized I was gaining muscle weight and not fat. I would suggest measuring yourself to see how you're doing. Chances are, you've gained muscle mass and not fat.
Good Luck!
Foxy Baby Diva
-24 lbs.