My dog is driving me bonkers! Anyone else's animals acting weird?

I think my dog senses I'm pregnant! Normally I'd think it's sweet he's so concerned and following me EVERYWHERE, but these hormones have got me irritable! Lol! He's driving me batty! He follows me from room to room to room and peeks around the corner when I'm in the bathroom!! Lol!! He's been pacing the entire house non stop when he's usually pretty chill. I love the dog, I just hope he'll eventually let me pee by myself someday soon!!!! Hahaha! 
Does anyone else have animal(s) that are acting strangly around you?