I've had those dreams too, they are so strange.

When a friend of mine was pregnant, EVERYONE thought she was having a boy. One night I had a very vivid dream that they had a little girl with tons of dark hair and that they named her Maya. 3 weeks later they had a baby girl with lots of dark hair but they named her Ana. I never told them about that dream until three years later they had another little girl with lots of dark hair, and they named her Maya!!

When I was pregnant I thought I was having a girl for some reason, until at 7 months I had another vivid dream. I dreamt I was tucking into bed a little blond-haired blue-eyed boy who was saying "I love you mommy". It was strange as DH and I both have dark hair and neither of us has blue eyes, but 3 months later we had a little boy with blond hair and blue eyes!
Oh my that is freaky! I think the weirdest one that i had was when my SIL had really long hair and she loved it but i dreamt that she got sick of it and got it cut really short. When i woke up i told DP and he laughed and said she would never cut it that short but later that day we bumped into her and yep she had cut it really short i just stood there staring, she thought i didnt like it!