Please help

Paige

So this is the first cycle since I’ve been tracking that I felt confident that I ovulated. Once my temp plummeted I was expecting to get my period. However, this morning, my temp spiked again.

My cycles have always been irregular and my temps are usually weird and don’t follow any pattern, but not like this. I should probably note I use OvuSense to track BBT.

I had posted previously that I wasn’t even sure which day I ovulated (Fertility Friend thinks 8/3, OvuSense thinks 8/10, I think 8/9 based on my chart)

Now I’m just downright confused. Why did it drop so low on CD30? What does this sudden spike now (CD31) mean?