Spotting and Scared!!

Liz
Guys I just realized I'm spotting and I have no idea what this means. It's never happened to me before. It's very watery, but definitely bloody. I have been sexually active with my boyfriend a lot recently, and unfortunately we haven't always been as safe as we should be. I've taken EC twice in this cycle. Please someone tell me if you have even any idea of what might be going on with my body.