I love Price Is Right and have always listened to Bob Barker and Drew Carey - spay and neuter your pets - there are way too many unwanted dogs in animal shelters and rescues. I know you say he is with you 24/7 but just go to the breeders threads here and you will see how many "oops / mistakes" there are with unaltered pets. Just my opinion of course. I had Jack neutered at 5 months and Izzy at 5 months also. I know there will be no unwanted pregnancies - I'm way too young to be a grandma
. Also, Jack had just started marking in the house and that was one of the reasons why I had him neutered at 5 months. Good luck with whatever decision you make.