I finally got Carter to use it and he nursed the whole time on both sides. He took it 2-3 ounces of formula, which is about what he takes in after he nurses. My question is, do I have to pump too? He nursed for 15 min on both sides with good sucking action. I think he's been getting frustrated at how little milk I'm able to give him, because as soon as he realized there was milk available he nursed in my arms no problem. It's a little cumbersome because of the tubes and he's so grabby, but I think it will do the trick. I was just wondering if I can stop pumping during those times he nurses using the SNS. My nipples are getting so sore from the pump and it would be great to just pump at night and first thing in the morning. However, I don't want to compromise any stash building posibilities. But if he's emptying both breasts and nursing on each one for 15 min, then that should be enough. Right?