I would like some opinions on the right time to spay or neuter a Great Pyr puppy. All I have read says do it as late as possible due to hormones helping close off bones, etc, so I have waited and can wait longer, just worry about containing an exuberant pup in heat with a LOT of neighbors around with unaltered male dogs. I can still wait on my boy a bit if needed, they are both six months old, or will be in a week. And their first heat comes around what time? I have read usually around 10 to 11 months, but the girl at the petstore told me around six months? So I am getting concerned. I dont want a pregnancy by her, she is way too young, and she in no way would be ready, she is just a babe herself. Dont think she would ever be a good candidate to breed, she is just a nervous wreck a lot and has allergies too. Anyhow, can those familiar with the breed give me some input?