I'm not sure I understand your question, do you mean right before getting AF or generally in the entire period of time before AF returned?
AF didn't return for me until I quit pumping and was only nursing at night and in the morning (after Coop was a year) so maybe I can't answer your question?
KNJepp:Not that I recall, but I'm not one who normally has breast sensitivity due to AF anyway.
Same here. AF returned when DS was 9 months old.
My weirdo body didn't get af until months after being done BF, so this isn't first-hand knowledge.
I can see how it could, if you are one that is prone to breast/nipple tenderness during PMS. However, if you aren't, or if AF doesn't start soon, I'd get checked out to rule out thrush.
Hope it gets better soon.
My AF returned at 5 and a half months when I was still EBFing. It was right after she dropped her nighttime feeding for good. I'm sooooo lucky.
No sore nipples although my supply did drop and she nursed a TON because of that.