Tmi pimple on breast?

I have this thing on my breast now I usually get pimples on my boobs and last time I went to the gyno to see if it was something and he told me it was a Pimple so I felt stupid but they have never looked like this one I took a picture of.. Does this look normal? It's like a black scab over it and it was bleeding in the morning today.. I wanna go to the doctors but last time I went he said all it was is a pimple.. Not sure about this one!!