I DON'T KNOW WHATS GOING ON

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Soooo my period supposed to came july 2 but didn't show up on july 11 -13 i started spotting only when i wipe i have sore breasts nausea very light stomach cramps and all negative tests yesterday I had clear sticky discharge and I'll be damn today I took an ovulation test and it came back positive I do not know what's going on I'm still getting a negative pregnancy test so I guess I'm just ovulating but I wonder where the spotting came from how anyone been thur this