Help...?

So I have this “beautiful” chart, and got a BFN yesterday at 4 days late for my period - what the heck?!?! No idea what’s going on - sent my temps to my doctor and she says it looks good for ovulation at the first temp rise, but it keeps rising and I am super late for my period. Has this happened to anyone? If so, what was the outcome? Really just confused about what’s happening. I was on Provera for 2 days at the beginning of the month before my period started, so don’t know if that changes anything. Thaaaaaanksssss (sorry going a little crazy here 🤪)