Do u guys see it?! Helpppp

Rizona

Do u guys see it? I am 4 days due to my period. I test it with the pink line from first respond 2 days ago and it was really a faint line. So after 2 day (today) I retest again,but by mistake I bought the blue line. So ,should I wait 4 days more,or should I go and do a blood test.!