I posted a couple days ago but not sure if I really understand

Brooke

I got a super positive peak CD 16 temp dropped that morning and then I got a lower test the next day with temp drop and then another positive OPK with temp increase on CD18. So did I Ovulate twice (if that's even a thing), did I Ovulate CD 16, CD 17, or CD 18. Are OPKs more reliable or are the temps?