Birthing plans...

Beth
My sister-in-law asked yesterday about birthing plans. The way she said it made it seem like there are a multitude of ways to give birth. It made me slightly worried. I hadn't thought about it beyond going to the hospital and just pushing it out. If this isn't your first rodeo, what have you done before? What will you do for this one? If you're like me, experiencing all these new things, have you thought about birthing plans?
Thank you in advance!