Do you go tanning? When I went tanning last year my nipples started to get darker. When I stopped tanning for the summer they went back to their normal color. Now I cover them up with pasties every time I go! : )
My nipples have always been more of a brownish color...But i'm almost 30 wks pregnant and they have gotten darker since i've become pregnant. Ya *might* wanna take a pregnancy test if theres any way you could be pregnant.