Hi, I had gotten my first Depo Provera shot about 1 month ago- yesterday my right breast became very sore, just this morning as I got out of the shower, I noticed a hard, tender bump right next to my nipple, it looked like a giant white head so I was like, "eww, thats disgusting," so naturally, I tried to pop it, and white/creamy yellow gunk came out; now there is still a lump from it underneath and looks like just a scab, and is tender to touch. I know one of the, less common, side effects of the Depo shot is having sore breast, but is this normal?Is it really just a gross pimple, not something serious?