Licking, pacing, howling, and chirping. You might notice your cat licking her genitalia frequently – There is a discharge from the cat's vulva a few hours before birth starts. Your cat's water will break as well.

How long after a cat's water breaks do they deliver?

Abdominal contractions will then commence, the queen will strain and the first kitten should be born within 1 to 2 hours. The placental membrane often ruptures ("breaking of the waters") prior to the kitten being born but is not always the case and some kittens are born completely covered in their membranes.

Do cats leak when pregnant?

When your cat is ready to give birth, there are several noticeable signs: she may start leaking milk, have visible contractions and start to purr loudly.