Way to emotional? 35 Weeks

I legit have no motivation to do anything. All I do is fight with my husband and cry constantly. I have an OB appointment at 9:00 tomorrow and I know when they ask how I am, I will break into two and start crying. I almost want to cancel my appointment because of this and just stay in bed. I haven’t had an appointment since 29 weeks because I have been so busy. Is this normal to feel this way?