Hello..i Saw A Small Red Bump With A Black Dot

hello..i saw a small red bump with a black dot in it on my right breast around the aerola, it pains little on pressing....what could it be. I wax around the aerola. I am 32 years old, married having a child of 3.5 yrs. My weight is 57 kg and height is 5'3. I don't have any illness