Milk Production Stats

I was doing the math and I realized... if each baby drinks an average of 20 oz per day (they do) and they have been alive for 44 days (they have). I have produced approximately 1,760 ounces of milk (also known as 52 liters or 110 lbs). It is no wonder that I am hungry as a horse and always attached to a baby. Will I be able to keep up? They keep increasing their appetite but I am lazy to pump at night now so.. I may fall behind. Especially with the stockpiling. Which I should be doing obsessively for when I go back to work. They will reach their peek milk consumption at about 4 months before they can start food. I am less than half way there. AAAHHHHH.