Help with my cramps, they seem to be worse today?

I've had really bad cramps today, and yesterday. I used to get cramps about 3 weeks out of every month when I was younger, then when I was 19 I started birth control and didn't have them very badly, I'm 21 still on birth control. But today they're just painful. Lower back and side pain. What can I do to reduce the pain, preferably without using Advil and Tylenol, they tend to not help.