I took Daisy to the vet today like I do every Friday to weigh her. She loves going because she knows the vet tech's will give her yummy treats and the girls love it when I bring her in. Anyways, she has been gaining about 1.5-2 lbs a week. Last week when I took her in she was 15.5 lbs, today, a whopping 20.7 lbs! She is still very lean, and from the top, actually looks slightly underweight. She is really starting to get thick though. She is 13 weeks now.