I bleed every time i masterbate and the blood is the same colour as my period. i dont feel any pain, and i dont go deep (when fingering). im on birth control and am not a virgin, i havent had sex in a month. what could be causing this?

Uterine contractions from masturbation will cause any spotting or light bleeding to be seen vaginally. The most common cause is irregular taking of the active bcp's. Take the active pills within the same hour as the previous days active pill to avoid minor bleeding or spotting. The hormone content is low in today's oral bcp's, so withdrawal bleeding will sometimes occur if taken late.

Difficult to say without an exam. It could be one of many things- irritation, ulcer, cervicitisetc. Pl get checked by your Gyn