I don't take anything to get the 6-7 ounces. That is for both breasts combined. My sister-in-law told me to pump after each feeding on the weekend to build up my supply. You only get an extra 2 ounces usually, but that seemed to work. Now, I usually pump right after she eats in the morning if I have time, or I pump after her last feeding of the night. I now give her 2 ounces of cereal with milk in the morning, nurse her, pump at work twice, feed her again at 3:30 when I get home, mix 2 ounces of milk with cereal at around 6 and then nurse her, and then nurse her again before bed. She sleeps from 8:30 or 9 p.m. until 6 a.m. That's what I would suggest though is pump after feedings to increase your supply.