If you haven't felt your baby move like AT ALL , Zero . Like nothing . Then yes you need to go to the ER .
But if you felt him move atleast a couple of times maybe not as usual but atleast felt him move then I would wait till tomorrow for your dr appointment . Baby is running out of room so may be harder for him to move like before.
I have a doctors appointment tomorrow don't know whether to just wait, I'm terrified of a still born and this is my first baby!
Go the hospital to be safe..♡