How do you know when a cat is ready to give birth?

She will definetely look around for places,most likely meowing and if possible trying to make the place warm, like my cat always had hers on this closet clothe's basket,hehe,but we then made a cardboard little house and placed blankets on the floor,she always let us be there and help if needed,be sure not to miss it!

Its belly will be biggger and she will go on finding places that she thinks is safe.make a good watch over ur cat unnoticed and u may find her safe spot

One thing is for sure. Cats are making nests for the ones they give birth to. Don't worry about it. If you can't keep her at home, then try to let her to go to her children with full stomach. This way she provides them with good milk. Don't feed her at this point onions, garligs, vegetables and stuff like that. No pouder milk to her. Try to feed her with meat well cooked. And also rise and potato. Don't forget to put some olive oil in her food (cooked of course).

your cat will know when its time.i found my cat meowing loudly at the front door i let her in she went straight to the wash house and sat there .so i put an old blanket down for her.i was amased she was ok with me watching my last cat would hide and i didnt see her till the kittens where running around