One of the cats we use to foster was the one who told me I was pregnant. The nigh before either found out, the cat Wally would walk circles around my body all night long. He would stop and nuzzle my face or step on my hair to wake me up. He knew and I'm not sure if he was trying to let me know or what. Sure enough, the next day I found out I was pregnant. He stopped his circles but would lay with me on the bed. Which he had never done before. We we're simply fostering him for a friend and when that friend took him back, he ran away from their house 2 weeks later. I miss wally. But my other two animals didn't care about my pregnancy lol