Who should be allowed in the delivery room?

If I were having a baby, I think I'd only be comfortable with my husband in the room with me (besides doctors and nurses, of course). But I might feel bad if I didn't let my mom or maybe my mother in law in for the delivery. I just wouldn't want more people than necessary to be there staring at my vagina or possibly witnessing me pooping on the delivery table haha. Who do you think should be allowed in the delivery room?