Does anyone feel like pets act different while ttc?

I know it sounds crazy! My DH and I have been ttc for the past three months. Today is supposed to be first day of AF, but no sign yet. Our cat however has been so different. All morning he has laid across my tummy and if I get up to go to bathroom or kitchen he follows and lays at my feet. What do you ladies think? Though it would be interesting topic :)