Do animals know something that we don't?

Amber
I have a cat and usually he's kind of a jerk but he still loves on me all the time too. I'm just over 36 weeks pregnant and I've been going to L&D a lot lately because of horrible stomach pains and contractions. Well the past week now, my cat has been the sweetest thing ever. He's always trying to lie with me, on my belly, get up in my face and he always wants to be around me now. Do you believe that animals can sense that something is going to happen? Possibly labor? I know animals can be trained to help with medical emergencies so they obviously can sense things that we can't. Does anyone else believe that?