The Highs and Lows of Air Pressure Air near the surface flows down and away in a high pressure system (left) and air flows up and together at a low pressure system (right). Credit: NESTA
A female cat can get pregnant when sheâs as young as 4 months old, unless sheâs been spayed to prevent that. Queens can keep going into heat every 2 to 3 weeks from the spring through the early fall, making them ready to reproduce more often than not. A catâs pregnancy lasts about 63-65 days.
A brother and sister from the same litter can create their own litters by the age of five months. It is not a good idea to allow this to happen. Mother cats or dogs can become pregnant while nursing. It is important to keep a nursing mother away from other adult cats/dogs of the opposite sex. One can spay a mother as soon as the kittens or pups are weaned, (5 to 6 weeks for kittens and 4 to 5 weeks for puppies) and because of the risk of pregnancy this should be done.