I could have typed exactly what you did when i had my first class before DD1 was born, in fact i think i said similar things in my then Belly group about my feelings! I walked out of the hospital at the end petrified and wanting to find a way out of giving birth all together, c/s included..but really...once your there on D day everything is so different and its all ok. It might sound all scary and daunting but let nature take its course and dont over think it.