Mid cycle bleeding means???

Emily
I have been tracking my cycle like crazy for the last few months. This week is supposed to be My fertile week. I have tested every day sometimes even twice a day and no + yet. Today I test with my FMU and there is blood and I feel slightly crampy. I'm 14-16 days away from expected AF (one app says 14 one says 16). I have never experienced bleeding mid cycle. Help!

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