Dreams

I'm having horrible dreams every night since I've been pregnant. I've struggled with nightmares as a kid but now they are more terrifying because the events in my dreams are actually possible. Not like when I was a child and I was convinced a shark was going to come through the drain in bathtub and devour me with one bite. Now, my dreams are more like: I'll die during child birth, or that my husband is cheating on me. Both of these are very unlikely but possible at the same time. Is anyone else having dreams like these? I've tried changing my nightly routine and even my routine hours before bed but I can't shake these nightmares. Let me know if you are experiencing something similar!