Well the two semi-stray cats who the apartment below us take care of, a grey tabby we named "Grey" and a calico we call "Calico" (so original I know) were both pregnant. We haven't seen Calico at all, but Grey carried her two newborn kittens back, both dead. :( She still kept watch over them, it was so heartbreaking. R.I.P. little kittens...