Still a chance to be possibly pregnant?

Kaitlyn

I took 3 tests all had a vvvfl but was like at the 8 minute mark when they showed up. Test says to disregard results after 10, so it's still in the window. Then a couple days later I tried a digital and it was negative. I am 12dpo and have since been getting negative tests and have tested quite a few times. According to the article of the day on this app it says most tests cant pick up anything until day 13 at a very minimum. I am supposed to start af Monday. But have been having multiple symptoms. I am hoping I am, but feel very discouraged cause the tests recently have all been BFN. I took one today and one yesterday.. not getting that faint line anymore. And day before yesterday did a first response it was neg. and the digital was clear blue that was neg. And the 3 that had the faint lines were all first response. Could I still possibly be pregnant even though I'm getting negatives after vvfl at first? I do not have pics of the faint line ones.