Maybe I am just a little slow but hopefully someone can clear me up on this. When Yoshi went to the vet for his first puppy shots 3wks ago at 9wks old the vet told me he was 1lb 4oz in which sounded about right??. Now today at the 12 1/2 wk ck up they said he was 1.9 lbs. I asked the lady up front and she told me that the last weight was 1.04 then, she said that this means he is not quite 1oz over a pound? and todays weight she said was just under 2lbs. But she said it was 1 lbs 9oz. Now could someone please tell me what the difference is and how much he has gained in 3wks? if he went from 1.04 to 1.9? I am horrible at math does it show??LOL!