I have PCOS and my period is always irregular, can go months with nothing when I’m not on the pill. I stopped taking the pill mid April and have not had a period yet. We had sex on the 10th and 11th, then I had very light brown/pink discharge on and off for about 3 days from the 15th. Could this have been implantation spotting if it was only 3-4 days after possible conception? No idea when and if I have ovulated... it has now been 9 or so days, tested today and bfn.. any chance I could still get a bfp?