nightmares in 1st trimester

Ok is anyone else having crazy vivid nightmares? I'm 5 weeks 5 days. So far my dream have been about being kidnapped by a local restaurant owner and then I have to make a run for it. I also have my toddler with me. It's just freaking weird. I guess most of them I'm either escaping someone or something or I'm running cause something is chasing me. Just was wondering if this is just something my brain is doing to alert me of my pregnancy or if I need to stop watching horror movies haha. Oh and the nightmares are every night and during naps.