How much should my 5 month old pitbull puppy weigh?

We took her to the pet store today and she weighs 19.6lbs. We were told she is a pitbull but they were saying she looks like she's mixed with lab.

Better to ask your breeder than us.One of my Dobes weighs a good 79lbs and the other a good 62lbs. Different dogs from different lines will weigh different amounts.

She could be mixed or not. A lot of people think that every put bull is supposed to be big, wide and thick. The original pit bull is far from it. lean muscular, long snouts. Google pit bulls registered with the adba. They weight 30-45 full grown, where as am staffs and pit bulls registered with the ukc weigh more. I would say 20 lbs is a good weight for a 5 month old puppy.