I can recommend mei tai style carriers. They are great from newborn right up to walking. I actually demonstrated one recently with my 7 year old son in a back carry!
Welcome to UKHIppy
UKHippy is a long running online community and of likeminded people exploring all interpretations on what it means to be living an alternative lifestyle -- we welcome discussions on everything related to sustainability, the environment, alternative spirituality, music, festivals, politics and more -- membership of this website is free but supported by the community.