This is our first pregnancy and we want to be surprised. I just can't think of any bigger surprise than DH catching Baby Noodles and telling me (and the world!) if it is a girl or a boy. Plus, we love surprises.
One other big reason...
It's baby noodles. Noodles is one of my nick-name (since I'm very flexible due to yoga) and babies are natural yogis. Since we don't plan on finding out the sex, we will be calling the it by this name until it's due date.