Having night terrors (pregnant)

So lately I've been having nightmares. When I was young I had night terrors all the time and havent had them since I was about 7 years old. I'm 20 currently and I'm pregnant and suddenly since being pregnant (I'm 7 weeks and 4days) I've been having them again. They're so intense I wake up in tears and shaking. Could my pregnancy be the cause of these dreams or is if just coincidence? Any tips to shake these dreams?

Sleep is an important part of being healthy and having a healthy baby but these dreams have made it anxiety provoking to try to sleep.