Confused yesterday vs today

Hello, I ended up picking up some pregnancy tests yesterday since I’ve been feeling off and I got positives on pretty much all of my tests. This morning, however, one test came back negative and the other is a much lighter positive than yesterday. Now I’m just confused and feeling a little weird about it and wondering if I did just get some bunk tests that showed false positives. Here are the pictures of my tests, the ones on top are yesterdays and underneath the correlating tests are the ones from today. It just seems like such a big difference and now I’m feeling crushed. Yesterday’s tests were done around mid afternoon, today’s were with fmu.