HELP!!!!

Ok.. I am on the pill. I take it how I am suppose to every single day at the same time every day. I have been on the same pill for almost two years. Well, last Saturday I started spotting. My period wasn't due for about a week and a half at this point. It was very light pink and brownish. Well it is now day number NINE and I am STILL bleeding. It's not period like in my opinion. I normally have very bad cramps with my cycle as well and I dont have any symptoms of PMS as I usually do. This has never happened to me and i do not know what to do. It's not heavy at all. I only use about two tampons a day. Can anyone give me any answers or possible answers??

Just FYI, the pill is the only form of protection used.