Ok. So I just had my period from the 12th to the 17th, and I've just stopped taking my birth control very recently. We are now TTC and yesterday was my peak day according to glow. So we've BD almost every day during my fertile window, including the day before, day of, and day after ovulation. But today I went to the bathroom to pee and looked down and saw blood that looked like a period. When I wiped it looked like a very light period. What could this be at this point in my cycle? Today is CD 13.