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.
After breeding, a female dog has a gestation time that can last anywhere from 55 to 66 days. After the 40th day, her breasts will enlarge noticeably and she will begin to put on weight.