Swelling is the major factor as to why you're seeing no change.
At 2 weeks post-op, you are likely seeing swelling occur. In my experience of several years, I find weeks 2 and 3 post-op to be the point of maximum swelling. Then it gradually subsides over the next month or so. Consult your surgeon, and make him/her aware of your concern, but in time I feel you should see good results.
Liposuction and swelling
At two weeks after liposuction you are most likely swollen. Give it time to heal it will likely take several months to see the final result.