I have REALLY bizarre dreams when I'm NOT pregnant, and they haven't gotten much weirder, although maybe a little more vivid, during my pregnancy.
But I did have a strange one last night - I don't know the details, but somehow I ended up time-traveling...but more like re-living a past experience? The experience was being with my ex fiance, and after I came back to present-time I decided to find him to see if he had also time-traveled. When I got there, he had an envelope that had my baby's sex in it. He opened it and told me I was having a boy, and I started crying and laughing at the same time and was totally overwhelmed with happiness.