New to temping and charting!

Ni

I'm now 8dpo, do you think the drop in temp means that af is on her way. I'm due on the 31st. I have symptoms, headache, really heavy/ bruised feeling boobs, a bit of nausea, joint pain. But then last month I had no symptoms and had a chemical and the month before had the same symptoms as now and came on 4 days early.

What do you think of my chart?