Day 6 after section and still having colostrum!

Su
After 6 days of my c-section I still have nothing but colostrum! My baby wasn't latching properly so I bought an electric pump and I am using it every 2 hours. I usually get between 1-2 ounces from emptying both breasts, so after giving this milk to my baby I give him formula as he is a super hungry boy. The thing is I feel I should be having more and what I'm getting is still colostrum as it's very yellow! When is my milk going to come-in?? I won't give up, but it's a bit frustrating!