What do you think..need some comments!?

Do you think animals can sense that their owner is pregnant?? I have heard stories of them detecting cancer or sensing that something is wrong with their owner. My dog has been overly protective of me lately even around my husband. When my husband gets close to me, my dog goes crazy. He follows me around everywhere and he also barks at me alot like something is wrong. MY husband and I have been trying to conceive for a year now since I have been off the pill. I have been having some painful twinges in my lower stomach and also some cramping. I have irregular cycles so I don't know when I am "late" to do a test at the right time. I will take a HPT in about a week or so but I just wanted to ask if anyone has every noticed the same thing about their animals. Hopefully this is our month!!!!