Weird dream about being in space shuttle?

I had a dream last nite that I was in a shuttle in space with my mom, my daughter, my niece & some girl astronaut & we were waiting for the 'blast off' countdown so we can go back to earth (I know it doesn't work like that), & I was super scared & I was holding my niece's & daughter's headd so they wouldn't shake much(we didn't have anything on)& the astronaut girl fell asleep during the countdown ...That's all I remember???