Is this a chemical?

Lu
Hi guys, 
I'm freaking out a little, I feel like I may have got a vvvvvfl on a preg test yesterday, and I tried testing again this afternoon to see if it would have gotten darker and got 2 BFNs.. :( I've seen people say to test with first morning pee because otherwise it's diluted, so maybe, but shouldn't the faint line still have shown up on at least one of the tests? 
Does this mean I'm having a chemical? If it is a chemical shouldn't I be bleeding by now, or does it wait for my period to come? Any help in understanding what could be going on is appreciated!