Is there any chance I could still be ok??

So three days ago (will be a full 3 days since first test in 2 hour) I took a .88 Walmart test and got a clear, but very faint positive (I thought). Yesterday I tested again with another of those .88 Walmart ones (only 11 hours after first one) and it was not any darker and may even have been a little lighter. I just now went and got a 6 day sooner first response and took one (only 1 hour pee hold just now at 3:00pm). I still see a line, but it is almost not there!!!!! I had a temp drop today with bbt, still above cover line, but big :( I am soooo afraid this is ending in a chemical

First test 3 days ago at 6:00pm after 8 hour pee hold.

Second test yesterday at 6:00am (11 hours after first test).

Test I just took at 3:00 after 1 hour pee hold.