Ovulation

I’ve been tracking my ovulation and pretty much had it down pat. I rapid surge so I was taking about 3 tests daily around 4 days after my period ended to catch my surge. Lately, I have been peaking in the night time. Sometimes at 2AM. And then by morning it’s back to normal because of the rapid surge. Is peaking so late in the night/early in the morning fricken normal?! Like I’m losing my mind.