According to my LH strips and temping I ovulated on CD 15. I had the three days of rising temps but now they’re consistently dropping?

I take my temp at the same time every day (minus CD 7&8 so ignore those), and vaginally.

I don’t always get a solid 4 hours of sleep before I test. Sometimes I wake up at 5am, and then fall back asleep for an hour before I test (I try not to move too much).

Is it possible I didn’t actually ovulate? I have been continuing LH strips, but they’re not showing a surge. Or should I just move my temping time an hour earlier?

I was really hoping this would be my month!