I feel like my eyes are playing tricks/games on me. Are these positive faint lines?

he first two didn't start out like tht they started out like the last one with a faint line then got darker a few minutes after. Idk if this is actually positive bc I haven't missed my period yet it's supposed to start on the 12. And its supposed to be my second period after birth bc my youngest daughter just turned 7 months on the 29th