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.
Learn More. Although there are always variations, cats can have their first heat as early as 4 months old, and dogs can have their first heat as early as 5 to 6 months old; and if they can come into heat, they can get pregnant! With 50% of litters being accidents, you can see how unwanted litters can add up quickly.