How old does baby have to be for the back carry?
Technically, you can do the back carry with a newborn. It is a bit tricky to get them back there and as with all newborns and back carries (like with a wrap) you need to exercise extreme caution when putting them on your back, but it can be done and quite well. I have done it since my little one was 1 wk old (high back carry). As for the standard back carry, I started using that when my little guy was 2mo old. I simply kept his legs tucked inside like the newborn carry. Ideally though, people start using the back carry when baby is old enough to spread their legs around mom and has relatively good head support, usually around 4mo but it varies from baby to baby. When trying back carry for the first time (whether with newborn or older baby) I recommend using a mirror and either standing next to the sofa or sitting on the soft. Check out my instruction page for more info.
