Ovulation tests, help please!

The top two are the same test clear blue digital, the one below is a One Step test. These were both taken at the same time with the same urine. How are they so drastically different? I thought I would have already ovulated but have been taking more tests to be sure.. Have I already ovulated? Or am I yet to? This is my first month using ovulation tests, tracking my temperature is just as confusing! Any help would be greatly appreciated please! Sorry for the long post! X