I think my dog knows. Every time I get stressed about a little twinge, a bit of spotting, etc, he insists on being right up next to me and cuddling. (And being a FTM who thought she couldn't conceive, I worry about EVERYTHING). He's such a snuggle bug right now. What about you? Have you noticed any changes in your pet's behavior?
Re: Dogs... The best therapy?
And I say this from a place of love for dogs. In all honesty I can sense when a friend/co-worker is pregnant most of the time right after she finds out without telling me. I don't have any super senses...BUT I'm very observant and pregnant women do carry themselves a little differently than usual (hard to describe it...more carefully maybe?) Just my two cents