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.
Female dogs, or bitches, become pregnant when they are in oestrus, often called being in heat. Oestrus in a dog generally averages about 25 days. A female dog pregnancy term or gestational period can vary from 54 to 72 days, or 9 weeks from the day of ovulation. What exactly is Oestrus? Female dogs have reproductive cycles every 6 or 7 months. During this cycle there is a period of time when they become sexually active, this is estrus. This is the time when a bitch will breed with a male dog.