Birth control Question??HELP!!!!?

So my birthcontrol that i am taking is Beyaz. Its not really helping my cramps. I would like to be put on a higher dosage. Now i am being sexually active and i want to take a birthcontrol pill that will help with cramps and also a really good pregnancy preventor. I am 17 and i would like to ask my gyno but i dont know what to exactly say. Any advice on which brand to take and what could i say?