I'm finding conflicting info on the back carry position, is it four months or six? LO is four months, can sit assisted, and has good head control. TIA.

Parent of
Baby Boy M, born December 2013
Angels: Miscarriage @ 9 weeks, May 2015, Chemical Pregnancy November 2015
Re: Ergo back carry
Breastfeeding Counselor with Breastfeeding USA
Babywearing Guide ** Newborn Carriers
Cloth Diaper Guide
Safe Bed Sharing Info
Breastfeeding Counselor with Breastfeeding USA
Babywearing Guide ** Newborn Carriers
Cloth Diaper Guide
Safe Bed Sharing Info