I just started on a new birth control because it wasn't managing my irregular periods and on the 8th day of using it I had a small spot but the rest of the day was normal and now I'm on the 10th day and I'm having small cramps on the middle left abdominal and still spotting dark brown discharge. I have had sex on the 6th day raw but I'm pretty sure he didn't nut in me and Everything I've read always point out to pregnancy but I really don't believe that's the cause. Help!