Spotting.. BC

I didn't know which one to post this under so I just chose BC. I had posted recently about having sex and then spotting afterwards. That day I had forgot to take my birth control until 11 that night when I usually take it at 11 AM. I then started bleedin like a period, which wasn't supposed to come until 2 weeks later.. But after my period ended, I haven't stopped spotting blood every day.. Help? What is the problem?