When I was pregnant with my daughter I had dreams of her being a girl and also seeing her. And yes she turned out to be a girl and looked the same as my dream. With my niece too. I dreamt she was full of dark hair and a girl. And my niece now two months has black hair and alot of it!
Dreams don't really mean anything in terms of gender.
I dreamed that I had a raptor.... turned out it was a girl. So no real faith in dreams coming true ;) Hahaha
For me it was the opposite with my first I dreamed I had a girl I saw the ultrasound and everything next day when I went to the Dr it turned out its a boy lol with my second I had a dream I had a boy and it turned out to be a girl lol