Scared

It's midnight and I'm still up.  B is sleeping soundly while I'm wide awake thinking about how my life has changed since I returned here and how it will continue to change in the next few weeks.  I have to be honest, I'm really scared.  I guess 'freaked out' is more apt.  Suddenly I am terrified of giving birth...  All my readings on pain that comes with giving birth (CS or otherwise) have made me even more scared! Tell me, is this normal?