🩸🩸🩸Continuous Bleeding 🩸🩸🩸

So I started taking a new bc pill called yaz or whatever. I started taking it the day of my period (feb 6th) and have been taking it everyday since then, however my period was suppose to end a couple days ago (feb 11th) and it hasn’t. I have some light bleeding still going on, like enough to almost cover a panty liner. Is it because of my bc pill or something else?