At what age do i start switching my child off of formula? She will be 1 on November 7th. She doesnt not have any teeth. She is still on stage 2 pureed baby foods. She cant really eat other foods yet that are not pureed. She also does not try to self feed at all. *she was born 10 weeks early, so she is behind*. Do i wait until her due date(January 12th) to switch, or switch over when she turns one(November 7th)? Ive heard that by one your baby is supposed to be off formula completely. First time mom here, just asking for advice. And yes im going to speak to her pediatrician about this as well.