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.
Answer Wiki. Female dogs are usually pregnant for 9 weeks, varying from 60-67 days. It is sometimes difficult to determine exactly when a bitch is due to whelp because matings may occur over many days during the estrus cycle. This affects when puppies are born rather than the breed, as there are few differences in gestation length regardless of breed.