I got a faint BFP on numerous tests the same day my AF started and was negative next day. I believe I had a chemical. Im now onto CD 5 and still bleeding bright red blood. I usually only bleed for 4 days and on CD4 its usually quite light and more browny colour. This is very unusual for me so thats what made me asked if people who had had a chemical noticed this afterwards that the bleed more and for longer?