38 weeks tomorrow

So I took a nap because I was very tired then woke up and saw that my husband was calling and he asked if I was drunk (obviously joking) since I was slurring my words really bad when I talked and I was kind of like wtf is going out and just said I was tired. What could cause me to have slurred speech I haven’t had any other symptoms I mean my head kind of hurts a little right now.