Confused

So, yesterday, I took 4 tests. 1 cheapie strip from Amazon, where i thought i saw a very faint line, which prompted me to go get digital ones. Took a Clearblue digital, which was negative. Then, at two seperate "pees", took and got my 2 positive First Response digital tests.

Today, I tried testing with the cheapie strips from Amazon, and looks negative to me.

Should be 4 weeks 3 days.

Thoughts?

Think I'm going to go buy some more brands of regular tests and drive myself crazy. Lol