Evaporation line or faint positive?

Amy

Trying to conceive for about 3 months now and received two very faint lines on two different brands of tests. This one was Walmart equate. Currently about 12/13 dpo. Anyone know if they are evaporation lines or very faint positives? Maybe I’m just wishing they were positive.

I am also due for my period tomorrow but I have had a few days of light pink bleeding. It did get a little bit heavier today but stopped all of a sudden. It started before my period was expected. Is this a good sign?