I dont get it test true or play with my eyes.......?

Ok so suspected pregnancy....... took a test not with morning urine and the test came bak with the faintest line i showed my partner he was "where i cant see it" is this "line" my imagination??? I mean it was hardly noticeable i had to squint my eyes just to see it and it was before ten minutes of taking test maybe 6-7mins. Plz give me ur opinions has this ever happened to u and it turned out u were actually pregnant????? (Btw we have been ttc for 3yrs)