Why do I ..

Last night I had a dream I was at the mall with my dad getting my make up done by some girl.. Suddenly I got up to look for my dad since he wasn't answering my calls and out of nowhere my water broke at the mall with lots of blood and the contraction oooo those lovely contractions hit me I cried so much in my dream having there only my sister in law brother and dad. Anyhow I'm expecting a boy in reality but in my dream I keep seeing this little cute baby girl. I told the dr this isn't my baby?? He said but it is.. I said no I'm having a boy he said sometimes the ultrasound techs get the gender wrong and there she was my beautiful little girl with a lot of hair light skinned and with the most cutest dimple on her right cheek. In my dream I had given birth at exactly 30 weeks and 5 days or so. She didn't need the NICU or anything she was perfect. This isn't the first time I dream about a baby girl