I'm about to take my first pregnancy test

Mary • I am 24, in a relationship, and have one baby boy.

This is my boyfriend and I's first time trying and am taking a pregnancy test. Only thing is how long do I wait until I take said pregnancy test? And I know about that faint line thing but is that a true positive? Like a sure thing? Or a maybe thing? I'm so scared to get my hopes up. Input and tips would be great.