I had unprotected sex 12 days ago, this was done a day after my period was done. My partner did cum inside of me and told me that I just got off my period, I shouldn't be ovulating. However I was still very anxious and worried that I might still get pregnant, so I took plan B THREE DAYS AFTER!! Now exactly a week later, I woke up with bleeding, this isn't brown spotting, it's Red flowy type of blood. I have done some research and they said the blood should be brownish-red colour. I don't have that at all. I'm scared as it might be implantation bleeding which occurs 12 days after conception. PLEASE HELP?! Am I pregnant???