Did I already ovulate??

Yesterday and today I’ve had EWCM which is most fertile, and I had a darker test yesterday not quite positive, but still darker and then today it got lighter! What does that mean?? Did I already ovulate and miss it or what’s going on?? I’ve never used tests before to check for ovulation so I don’t know how this works.

The 2 dark ones were yesterday the bottom one was this morning it’s definitely lighter and I’m still testing this evening but if you have any insight pleaseeee let me know!!!