What breed is your puppy? If it is a large breed, you should expect the dog to increase several times. A slight increase is possible if the breed belongs to the hunting breed. You should read about it online or ask your veterinarian. In the future, when the dog grows, you can take measurements with an online tool to track age changes according to the table. You may need Height Comparison - Comparing Heights Visually With Chart for this. I had a Labrador puppy, he grew and gained weight quite quickly, but everything fit into the size of his breed, so you should know the breed and then evaluate it.