Can anyone explain what’s wrong with my body?

Okay so for context, my last period was September 18-21. I took a plan b on Sept. 26. Within a few days prior to that, I had I believe to be breakthrough bleeding. Today is now Nov 3rd I haven’t gotten my period yet. I have no symptoms AT ALL. I’ve taken 6 tests in total over the past week all come back negative. Today included, negative with a pink dye test with first morning urine, first response test.

Could anyone explain to me what’s going on?