My 6 month old cat got out of the house twice while in heat. She tore a hole in the screen of the window. About two or there days ago my mom was coming home and saw her with another cat. This is our first time dealing with breeding. Any tips? Help? How to deliever kittens? When will we be able to tell if she's pregnant? She has an appointment to be spayed in 17 days and I want to ask the vet to do an ultrasound. I just really need tips on this whole kitten, delivering, pregnancy, thing.