OPK help? 2 positive 1 low

Hey Glow Team!

I need some help. I was originally scheduled for an IUI on Saturday but tested positive on my opk today.

It was confusing, because I did an ultrasound on Monday that showed I was on track to ovulate Friday or Saturday. So I took 2 more tests, for a total of 2 digitals and 1 strip.

1 digital and the strip came back positive, then the last digital test came back with a low LH result.

Yesterday I had a low LH result, and normally it goes from low, to high, then peak. This time it went from low to peak overnight. Just not sure what to think?