I am such a perpetual student--any stress dreams I've had about labor have centered around me not studying/forgetting to study/forgetting to take the class/taking the wrong class for birthing, not the actual birth itself! :LOL
But, yes, we watched birthing videos at our birthing class last week, and while they were amazing, some part of me says "wow. That's a FRIGGING LARGE HEAD THERE." I've decided to repeat a gazillion times between now and then, "I'm gonna get huge" a la Ina May Gaskin.