LH increase before AF? BFN @ 10dpo

Tara

Guys, at the end of my last cycle (see CD38 in first pic), the test line on my opk was darker when compared to the previous days; then Af came the next day.

During this current cycle, I noticed the same on CD31 (second pic). It means that AF will soon show?

I’m crushed! I took hpt today (10dpo) and it was BFN.