Positive faint line?

I took and opk yesterday either the smiley face or the solid circle. I got a circle. Today before i got in the shower i took it again and it came up with a smiley face and when i took the test out the applicator the lines were dark. Do the lines gradually get darker as you’re approaching af or it just goes that dark? I ended up taking a hpt i got a faint positive on the equate brand within a few minutes. I took another one when my urine was diluted and the line came up again just faint. Do these look like positives? Or evap lines?

Ovulation ^