11 dpo brown discharge

Sam

I don't know what happened but I got 2 faint positives on 9 (evening urine) & 10 (fmu) dpo & now I have brown discharge while wiping. I'm so sad right now. & I took a test today (afternoon urine) & nothing was there. I'm done trying. Why is this not working for me. I even tried tempting & using OPK's this cycle.