Not likely...puppies still have a lot of growing to do. They are born with the skin they have as an adult and it stretches as they grow. This causes them to look overweight. She is still growing and just like baby fat...it will even out. Make sure she is on the right kind of food. If it's Puppy Chow or Pedigree or Beneful...or anything else you find in a grocery store, get her on something better. The grocery store brands don't have the nutritional value that the pricier brands have. As a result the dog eats more to compensate for the lack of nutrition.