Did your dogs sense you were pregnant?

Courtney
Did your dogs sense you were pregnant before you knew yourself? 
I'm in the middle of my TWW and my dogs have been acting crazy the last week or so. Always around me and they have been a lot more playful and stuff... 
I took a pregnancy test yesterday (not with FMU) and it was a BFN but there is still a possibility.... 
Anyway, I was just wondering because my dogs have been so crazy lately.