what is a birth plan ? Do I really need one ?

Marie✨ β€’ Save the world 🌎 Raise a hippie πŸƒ insta: Therealprincessterry
πŸ˜³πŸ™ƒ Hey ladies , Im a New mom I'm aware of some things but not all . Growing up with 3 younger siblings , I still need some help . If anyone can explain this to me or explain how to get started I will really be thankful ✨😊 thank you