Pediatric Nursing(HELP)

Hello:
I am a 22 year freshman at Bunker Hill Community College. Currently I am taking general courses like math/eng/psy. which as you all know are pre-requisites for the Nursing program at my school. As soon as I am done with the Nursing Program. Would I have to continue to a 4 yr. college/univ. to specialize in Pediatric Nursing? I have no idea what to do next. Can someone please HELP!!!!!!!!! I'm lost! I wanted to be an elementary school teacher cause if I ever have children, i wanted to be able to be around them but also wanted to be in a field where it involves children. I thought Pediatric Nursing would be the best thing, but I'm scared cause of the stories I've heard about the hours and on call all the time. Well Basicly I just need to know what step to take next after i finish this 2 yr. community college program.
Someone pleasessssse help!