Please help!

Daisy

I got bfps on frer tests the last two days - not even with fmu. My period was due Saturday and didn’t show up so I tested, after getting bfns up until Thursday.

Got this

Then yesterday got this

But then I took a digital and it said NOT PREGNANT and I took a first response rapid response test that is vvvvvvvvfl.

I’m really worried. Shouldn’t I be getting an obvious BFP at this point on any test?! Am I having a chemical?