What does my dream mean?

Im 14 and i have a 14 year old girlfriend, and of course we havn't done "anything" we are only 14, but i think about what if we did sometimes. Last night i had more like a night mare than a dream, in my night mare i figured out she was pregnant and i was so scared about how much trouble we would be in, i was so scared i woke up in the middle of it and i was so relieved it was just a dream. What does my dream mean, i think it is trying to tell me i should wait till we are older, but of course i already knew that so i am clueless of what it could mean.