My girlfriend just recently had a bad dream about me getting another girl pregnant, but i still wanna be with her.

She's been having bad dreams like that every now and then... and.. i wanna know what it means. Of course.. i would never ever do such a horrific thing to her.. but i still wonder why she gets these bad dreams. And then eventually she gets into a bad mood and is very.. very hard to talk to and reassure her.

So.. i wanna know what it is. Why does she dream like that..? It scares me.. makes me think she's going to leave me because of a stupid dream..