Frightening dreams and restless nights?

Shelby
I'm 10 weeks, and the last few days I have gotten roughly 3-5 hours of sleep each night. I keep having these vivid frightening dreams, some more ridiculous than others but regardless I will wake up four or five times a night from one of these dreams. I also wake up over the littlest thing like my phone lighting up or the sprinklers going off. I've tried taking naps but it's the same thing. I just want to at least be able to sleep, I have an appointment with my doctor in two weeks and plan on asking him what I can do, but in the meantime has anyone else experienced this? And do you have any advice on how to be able to get some sleep? 
Thank you!