One step pregnancy test strips

I was just wondering what others experiences were with these or if they're any good I've been getting super faint lines the past two days but they dont seem to be getting darker the days before that they were stark white negative my period is due today and I'm not having af symptoms but I just dont know how reliable these tests are if any of you have gotten a positive result could you please post it so I can compare every time I try to Google for reviews it says they're no longer being sold