Hey! So I started the BC shot May of 2014 and my last shot was April of 2015. In May I started my period on the 4 and it didn't end til the 29. I was super scared and still a little freaked out that it lasted that long. And it alternated between bright heavy bleeding to dark brown and a lot of clots. I started back on a somewhat normal cycle but have been having really bad cramping and bleeding. I did some reading and found endometriosis could be the cause. Does anyone else have it or know about it?