Dreams and nausea!

Ashlyn
I am 5w4d and last night I kept having dreams about me bleeding! Obviously I'm afraid of having a miscarriage but I don't want to have dreams about it! Anybody else having this? 
Also yesterday and today are the first days I'm experiencing some nausea. I was almost worried I wasn't having very many symptoms but I am finally getting nausea. When did you start getting nauseous?