He looks completely normal (and adorable) to me.
Pit bulls are not meant to be huge dogs. Male size range is about 40-60 lbs full grown, of course outside that range can still be healthy but people saying their pit bull is something like 100 lbs either have a very fat dog or one that isn't an APBT
Growing too fast or trying to add weight to a puppy isn't healthy either and from those photos, his weight looks appropriate to his structure IMO so thats good.
Pit bulls are not meant to be huge dogs. Male size range is about 40-60 lbs full grown, of course outside that range can still be healthy but people saying their pit bull is something like 100 lbs either have a very fat dog or one that isn't an APBT
Growing too fast or trying to add weight to a puppy isn't healthy either and from those photos, his weight looks appropriate to his structure IMO so thats good.