Thought I seen somewhere here that you can see color in your cm due to implantation, is this true? We were at a carshow, had to use the johnny on the spot When I wiped, it was brown. I'm due for my AF between June 7-9.7th being day 26. I'm always either day 26 or 27,June 9 (28)the latest. I never show color any other time during the month. When does implantation happen? Could this be a sign that it has happened?