Weird pregnancy signs?

Recently discovered a dislike for Ketchup (too sweet). If you'd asked me about 1 1/2 weeks ago I would've said that I loved the stuff. Not now.

Next, I've heard that cats and animals can sense whenever you're pregnant. About 2-3 weeks ago, one of my cats (who before would scratch and bite me if I went near him or in my sleep) started never leaving my side, cuddling with me on the couch, et cetera. Today when I was sitting on the couch, he sat beside me on one side, one cat lay at my feet and the other cat lay on my other side.

Not sure if I am or not just thought this was interesting.