LO is 9 months old and I am consistently dipping into my freezer stash to meet his oz requirements. So far we haven't supplemented at all with formula. He had mspi issues so I'm wanting to ease him into cows milk after his birthday and planned on mixing cow milk with frozen milk at first. But I I keep using my stash I won't have any left at that point. I have some formula and thought about using my freezer stash until I had a months worth left to mix with cow milk then switch to supplementing with formula to make up what I'm lacking until he turns a year

So : should I save some stash to ease him into cow milk after a year and supplement with formula until then ? I'm kind of leaning towards doing this because it will allow him to have breastmilk past his first bday. If I try to skip the formula and keep using my stash I may end up needing formula anyway because I don't know if I will be at the year mark then

I have about 480 oz in my stash and am using5-10 oz a day to mix with fresh.