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.
Dogs are normally pregnant for 9 weeks, but this time period can fluctuate by a week before or after the average 63 days of gestation. For larger litters the pregnancy usually lasts less than 9 weeks, while the opposite is true for small litters. Determining If Your Dog Is Pregnant.