Baby hasn't kicked today at all?

Destiny

I'm 27W3D and my son hasn't kicked at all today. I'm drinking a coke (I know not good!) And sitting in my chair at home and nothing. Not even a nudge... What should i do?? I'm a FTM and don't wanna go to the ER if it's nothing...

Update: I am having some belly pain like you have to poo, but TMI I just pooed and the pain is still there.