I have a 4 month old. At one month he was getting apple juice, 1/2 ounce to 1/2 ounce of water a day for constipation. Breast fed baby. At 6 weeks he started oatmeal cereal. Last week I started him on stage one, made by me, foods. Squash and sweet potatoes.
I started immediately with him watching kiddie shows. Now he sits in his walker for 30 minutes twice a day and watches Yo Gabba Gabba and loves it I talk to him constantly he talks back.
The doctor said she rarely sees a baby his age so interactive. He rolls over both ways and grabs his toys and puts them to his mouth.
My parenting is controversial. I allow him to tell me when he is ready for something. And we go from there.