My son has the same birthday as yousr and I started him on 2 oz of whole milk to see if he could tolerate it and then the next day i went all in on giving him is 3 bottle a day with whole milk and not formula
My sons pediatrician said to wait until after his birthday
I'm mixing milk and formula mostly coz I'm on WIC and once they hit 1yo WIC doesn't cover formula
My ped told me start mixing formula with whole milk until I finish the last can then whole milk and I started this 2 weeks ago he’s 1 on the first