Faint Positive Line??


I'm new to the TTC community and am hoping for some input! My period is 3 days late (it was 5 last month) but I woke up and felt like I should test this morning. I see a faint blue positive line! What do you think? ... this picture doesn't quite make it look as present as it actually looks... has this happened to others? How long should I wait before I test again? Any other advice?