The female cat's sign of mating is that she suddenly turns back to bite the male cat or hit him. After the male cat leaves, the female cat will lick her reproductive organs and keep rolling in front of the male cat. At this time, the mating is successful. After successful mating, the female cat will no longer be in estrus, her nipples will gradually turn red, and her appetite will increase. If pregnancy is not successful, she will go into estrus again in about half a month.