Best baby carrier/wearer?

Kimberly
I would really like to get something to "wear"
my baby. I'm due in exactly 4 weeks and this is my first baby. There are sooooo many options for baby wearing so I am wondering which one is the best? I would like to get something that transitions. But is it best to get something more like a wrap for when babies are very little and then something else for when they are a little older? Any advice is greatly appreciated!