My boyfriend is always telling me that I am always complaining about my tummy hurting, well it is the gods honest truth everyday my stomach is hurting, when I first started my period(at age 13) I had but one a year until a month before I turned 18 and they have been regular for 13 months now, and I never had cramps until January of this year, and the first time I had cramps I had a big clot of blood in the toilet after I thought it was because I needed to relieve myself, and now when I have my period I have really bad cramps, my OBGYN put me on birth control to maybe help it, but it hasn't helped at all. Any thoughts or inputs?

Go back to your gyn and ask - I don't think anyone can diagnose you over the Internet and this could be serious.