Extremely vivid dreams - a sign of early stage pregnancy??

M
Hi ladies, 
​I was wondering if any of you have experienced very real like vivid dream that are completely strang and unusual, before you got that BFP! Since Monday 17th March I have been having to most scariest/bizarre dreams that leave me all anxiety ridden/scared/upset once I have woken?? I can always remember my dreams quite clearly too. They haven't been anything related to pregnancy or babies either. I haven't preg tested yet as I am going to wait to see if AF decides to arrive....
​Do you think it might just be a change in hormones as AF is due in 5 days? but in saying that, this has never happened to me before...
​So I was wondering if any of you have experienced this at all? 
​Thanks you,
​Melissa