I’m new to OPKs but have started using them this cycle. I usually test 2x a day 11-12A and 7-8P, though some days I’ll test in between. My LH is super high in the mornings, but usually drops by 3-5 and stays low into the evening. Is this normal?

Also, if I text two or three times a day, is it possible that I could miss my positive? Like, when do you get a positive, before, during, after? What if I ovulated overnight? Would I still get a positive at 11A the next morning? Or at 8P the night before? I’m just a little confused..