Does anyone know if fertile CM dries up as soon as you’ve have ovulated or if it’s still there for a few days after

I don’t know when I ovulated this month as I ran out of opk’s, I haven’t had fertile CM this whole cycle until starting at CD 22 & I’m now of CD 25 & still having it, my temp this morning was 37.5°, is this a good indication that i ovulated a few days ago?

I just want to know if fertile CM disappears straight after ovulation or if it hangs around for awhile. Concerned I haven’t ovulated this month considering it’s so late in the cycle. Only been off the pill for 3 months & my cycle has been lasting for approx 32 days.

Thank you