Does this even seem possible? - ovulation HELP

Before I say anything, I realize I’m obsessively testing. Please let me live that life lol. I am 4 days late past my typical ovulation and I had a chemical pregnancy last month so my emotions are just running high already.

I tested when I first woke up and it looked like every other test I’d taken this week - negative. Two hours later I was so crampy and went to take a digital test. It came out positive. I dipped a different digital brand in the same urine, along with another one of these cheep sticks.

Both digital tests came back positive and the cheap stick is the “peak” one you see below. It seemed crazy it came out of nowhere so I took another one 4 hours later and the digital were negative again and the sticks are getting lighter.

Does it seem possible my LH surge literally lasted a few hours? I have had a decent amount of water today so maybe that’s it?