I am about 9 days before my expected AF. My period is not consistent every mth, so it’s hard to tell when I ovulate. But according to the calendar, I am in my Fertile period when I had sex with my bf n he came inside me. I had most of the symptoms since my fertile period and tis morning, I had a faint line using pink dye. But when I use a digital later in the afternoon, it was BFN.. so wat could it be?