Is the normal?

Every since I hit 37 weeks I've been feeling nauseous every day and it seems like each day is getting worse than the day before. I've never experienced this with my last pregnancy. The nauseous is getting so bad that I want to go make myself throw up just so the feeling can go away. Is this normal? Could this be a sign of something please give me some advice I'm am miserable. I'm currently 38 weeks now so this had been going on for a week now.