How long does kittens stay in a cats tummy?

Unfortunately, babies which are inside the cat's stomach have been eaten, and will only exit the stomach in the form of fecal matter ("poo"). A cat's digestion cycle is relatively fast (under 24 hours), so it is best to check the litter box.

If you are talking about a pregnant cat (in which case the babies are actually in its womb) then a domestic cat will be pregnant for around 65 days before giving birth. Ok. The second answer is right but what is with the first answer!!?? Oh wait......I know what you mean..... never mind!!