Bbt this cycle. So confused

Erica

So this is my bbt this cycle. Usually it will go down way before now on bbt because i usually would’ve started af by now like 6 days ago. So I’m 6 days late and my temp is still up but I’m still getting negative tests. Does anyone know what I should do? I don’t wanna keep wasting money on tests if they keep coming up negative. Someone please help because I’m so confused. My bbt has never been like this before. It’s never stayed high