Breastfeeding vs teeth

Abby
Lucy has two little teeth now! Yay! Which are super helpful with her BLW diet, but is really hurting her nursing habit, mostly because I'm having to stop her before I even let down because I can't handle it! I've tried relatching, pulling her off and telling her it hurts, putting her down, and just flat-out yelling (unintentionally). How do I get her to stop? She still very much relies on breast milk to get through the day so I don't want to stop, but I also don't want to have to supplement 😧