My Razael weighed 3 pounds 6 oz. at 7 months old, and now at 3 years old she's almost 8 pounds. She's been almost 8 pounds for 18 months now. I thought she was going to stay around 4 pounds and had beautiful sweaters made for her and now she's outgrown them. I even had Cindy (chattiesmom) make her another harness. So yes, I wouldn't put a lot of money into clothes till she's at least 2 years old. They do have growth spurts it seems.