I used the nipple shield for about 7-9 weeks and then she just stopped needing it. Mine was partly due to having flat nipples and I think all the pumping and nursing drew them out and it became easier for her to latch on. We had many many difficulties breastfeeding and she was about at that age (she just turned 2 mos) when I was so exhausted and discouraged and thought she'd never get the hang of things. That was the one time I seriously considered quitting although I didn't want to. It still took us quite a bit of work, but it was worth it and still is. Keep coming here for support. You're doing great.