Are birthing classes necessary?

Katey

We planned on taking a group class at our birth center but the other women expecting around the same time as me chose to use different methods and my midwife highly recommends a group setting. She gave me a couple other classes but I put off looking them up and they're already started.

This is my first baby and we plan on a natural child birth. I have read a bunch and watched a ton of natural birth videos. I feel prepared but am I being naive? What was your experience with birth classes or giving birth without taking a class?

Help! I am getting stressed out about this!