My baby is turning 1 in 11 days and I know that's when I have to take him of formula milk I'm just wondering does anyone know how I go about this do I just completely stop the formula and put him on strictly cows milk only or do I switch bottle by bottle if so how would i do this it's all confusing to me as I am a first time mum they don't really give you a manual as how to do all this I was just gonna take him off formula and just give him cows milk but would he get a sore tummy I don't know if anyone could help with how I can do this will be appreciated thankyou