I took an OPK this morning at 930am with FMU and was a 45(as per easy@home LH progression chart), had ovulation pains this afternoon and then took my next OPK at 930pm as usual and it was back down to a 10(as per LH chart). Every month when I do my OPKs I do them twice a day roughly 12 hours apart and have always gotten my surge. Is it possible i didn’t surge as long this time and missed it when I took the OPK tonight?

I’m confused, idk if I should keep testing or just wait it out and see if AF arrives.