So I had a period on Nov 18th. It was abnormal. Very light, only blood when I wiped. (TMI I know.) After it ended I took a test. BFN. So I wanted six days after what I believe was implantation bleeding to text again. Another BFN. (Big fat negative.) I figured it was negative because I tested in the middle of the day. I bought two more and tested in the morning. Still BFN. Is there a chance I may still be pregnant? My period is due in 12 days. My last normal period was on OCT 23rd. Heavy and all. Help.