Vivid dreams/nightmares

ttc for rainbow baby • My husband and I have been together 7 years. Married since Aug 2014. We started ttc in July 15 and got pregnant first month and it ended in an ectopic. We are now waiting for our rainbow baby .
So, hubby and I aggressively started ttc this month. I am 5dpo now and last night I had kept having these nightmares about choking on a couch drop I started screaming in my sleep. Not only did this happen once but about 3 times with the same dream. Have any of you had vivid dreams or nightmares before bfp?