Very vivid dreams or nightmares throughout pregnancy?

During my first trimester, I remember having vivid dreams of giving birth to a baby boy. It would never be a baby girl and it would be the same kind of dream almost every night. We found out I'm having a baby boy and then I stopped having those dreams for awhile. Now in my third trimester, I'm having nightmares of home invasions in which all of them the murderer attacks my whole family then approaches me, but I cry, shake and tell him I'm pregnant then he moves on to the next person. I literally wake up sweating and crying because it's so real. :(