Delgado was 20.6 lbs at 12 weeks and 30.6 lbs at 16 weeks (vet scale lol). Last official weight was last June and at 17 months he was 67 lbs.
As long as they're healthy and happy I wouldn't worry about the actual numbers just yet, he's young and has lots of time to grow
Jasmine - Female Miniature Poodle - born Aug 15, 2010
Loker Delgado Von Stalworth - Male GSD - born Jan 26, 2012
Koda & Zazu - 6 year old male cats
Alex - Male Cocker Spaniel (rescue) - RIP Cuddlebug 2007-2010