It's difficult to say for sure, without knowing what you looked like before the surgery as well as immediately after the surgery. It is very common to have swelling after a Tummy Tuck. That is typically more prominent in the first few weeks, tapering off over 2-3 months. You are still very early on in the whole healing process, and should expect changes, including improvements in swelling over the next few months. There are also other possible causes, though, which can include fluid collections, residual fatty tissue, the structure of the underlying muscles, constipation, etc. Keep close follow up with your surgeon to guide you through the healing and recovery process. Take care.