Is this peak opk?

It’s as dark as they come and the Premom app keeps saying it’s high But not peak. I took like 6 different pictures of it in different lighting and one picture will say peak in the app but the others will say high of the same opk. I had a miscarriage 4 weeks ago. No period yet but was taking opks. I literally took this at 10:30pm just kinda randomly after we had sex. I took a test on Saturday and got a high result and then it was back to low a few hours later. And this test is definitely darker than the one I took on Saturday so now I’m totally confused!