I'm into my third baby now using slings and here's what I love and hate.
I love ring slings or short wraps for rebozo, as they come in handy for nursing and for quick carries.
I love woven wraps and stretchy wraps because of the carries you can do and I find it easy to position baby in these than anything else.
I also really like mei tais for front and back carries too, but prefer wraps to these.
I hate pouches. I like the concept, hate that they are not adjustable (well not like a ring slings is ajustable). I hate soft structured carriers with newborn. I can get a much comfier carry with a newborn in just about anything else!
Having said that...it's really all about personal preference. I happen to love/hate these, but my friend who is into her second worn baby now, love soft structured carriers even with newborns. So...
You can do a back carry with a newborn. Practice, practice, practice...safely! Using a doll or stuffed animal at first and when praciticing with your baby, have someone spot you and wrap over a sofa or bed. Every wrapper started out a newbie and became comfortable and confident only with practice. It's very doable though.
Here I am with my newborn on my
back. Comes in very handy with three kids under 4 yrs old!