Pregnant Khloe

My cat Khloe has been pregnant for 65-66 days and still has not had her kittens. Can someone PLEASE tell me the average amount of days that cats are pregnant and the amount of days that she does not have the kittens that I should be worried. Don't worry as soon as the kittens are weaned I am making her an appointment to have her spayed. PLEASE HELP ME WITH THIS!

The average is 65 days. If you don't have babies by Monday I would for sure call the vet and see what they say. I have heard of some cats not going into labor until 70 days but that's the longest I've ever heard of. How certain are you of the conception date? Are you just guessing or do you know for sure?

I know for sure she mated on 5-30-12 and again on 5-31-12.. and Monday I will call if they are not here yet.

Remember she can get pregnant again very soon after having babies, so don't let her out again until she's been spayed.  If she starts calling again she will become a veritable Houdini in her search for a mate.