I have a teething 9 month old. The last few days when he nurses, his upper teeth are pressing into my nipple, and as a result, my nipples hurt about as bad as they did when I first started breastfeeding before they got used to the new sensation. Does anyone have any suggestions? I am not going to be weaning, and I don't respond as well to the pump as I used to. He's not exactly biting... only his top teeth are involved from what I can tell.