I got my pup from the pound, so we have to get him fixed ( that's one of the rules we have to follow in order to adopt) but my fiance is worried that it could stunt his growth and make him less protective of the house if we do it too soon. He just turned 3 months old. The vet wanted to go ahead and to it next week but he wants to call and cancel. We do want to have him nautered though. How long do you think someone should wait to have a dog fixed?