Breast Feeding MaMas

I have 6w old twin boys, I am mostly much milk are you ladies getting at this point each pump or for the day? 
My boys were seperated from me for two days as I was in the ICU recovering from a severe hemorrhage. I had issues with them latching because they were bottle fed in the nursery when they were born. I started fenugreek and its helped but I am only getting 3oz a pump and I pump every 3-4h its just not enough milk for both babies so I supplement with formula. They get breast milk during the day and formula at night...their bellies do so much better on breast milk so it breaks my heart giving formula...Im just curious how far off I am with milk production at 6weeks