So as some of you know I'm 10 days late on period. Tests are coming up negative. And on top of that…

So as some of you know I'm 10 days late on period. Tests are coming up negative. And on top of that I have been having symptoms. Another strange this is according to my app that I track my period and fertility on, today and the next few days I will be ovulating ... Why am I so confused on what's going on??? 🤔🤔🤔🤔