Definition of lowâpressure. 1  1 : having, exerting, or operating under a relatively small pressure. 2  2 : easygoing.
Today some vets will spay/neuter at eight weeks of age, while other adhere to the old practice of six months of age. The average age at which pets are spayed or neutered is four months. Adolescent cats and dogs as young as five months can get pregnant.
While one Yorkshire terrier puppy might get pregnant at just 5 months in age, a massive Great Dane might not achieve sexual maturity until she's between 18 months and 2 years old -- a major difference. Just as female humans mature at different paces, the same applies to canines.