Is it possible to have implantation bleeding the day before AF is due? I woke up at 630 this morning took a test and got a bfn. Well when I wiped there was a small amount of brownish pink on the paper. Thought it was AF went back to bed. Got up at 9 went pee and another very small amount (less this time) on the toilet paper still a brownish pink. I never spot before I start AF. She normally just starts full force. Could this be implantation bleeding? Im 12 dpo today.