why do i keep bleeding on my pill

Samantha • Ohana means family and family means no one gets left behind or forgotten.

I went to my pill clinic so they could give me my pill for the next 12 months and they gave me a different pill but they said it's the same but different ingredients and since I've been on it ever since me and my boyfriend are wanting to do stuff I bleed. I bleed straight after foreplay so we can't carry onto anything else and it's starting to get me down a bit now. I've looked online and it says stuff like infections etc but me and my bf have only ever been with each other no one else so it's not an infection and he isn't rough with it either. advice anyone?