Opinions please

Hi friends! I'm needing some input. My cycles are usually 30-32 days long. I'm on cycle day 14 today. Glow predicts ovulation on the 8th, so cycle day 21. I track using ClearBlue Digital opk'S. On CD 12 it was a blank circle indicating no surge, but the very next day on CD 13 it was blinking indicating Peak.. I took 2 to be sure..

Has anyone else went from no surge (no high days) to straight peak days?

Also, I have no other typical ovulation symptoms (discharge, cervix position)

What are your thoughts? Trust the opk and BD as much as possible over the next few days?