Opinions?

Hey gals! I'm just looking for opinions here. I'm 9 DPO, waiting to test, and yesterday started a sudden onset of very sore nipples. Breasts are not very tender, just sensitive and hurting nipples. Also a small amount of nausea. Took a test and BFN. Is it possible? I know I'm not imagining the symptoms because they are very clear. What else could it be? AF does not cause sore breasts for me.