I am 5.5 weeks out and have lost 16 lbs since surgery. I too started at a low BMI. But I also lost 10 lbs the two weeks prior on the low carb diet. Of course I would love to be lower but I am over half way to my goal and I know it's going to be slower the closer I get. I am doing cardio and yoga 6 days a week as the doctor hasn't cleared me for weights yet. If you ever want to email or chat since we're so close on dates let me know.
I also know that around 3 weeks I only lost 1 lbs that week so I was pretty bummed but I came on here and read about the 3 week stall and it made me feel sooooo much better.
Happy Holiday you got this!!
LA