Please help! Am I pregnant??????

So a few days before my period was expected I had cramps (just like normally would) but then my period didn't show up and it hasn't showed up for 4 days. Probably TMI but my nipples have been hurting soooo bad, I have to pee all the time (it wakes me up at night), and I have more discharge than usually (at first I mistake it for my period because it's quite a bit). I'm pretty sure I'm leaving one out but oh well. I haven't had any nausea or vomiting and like my boobs don't hurt but my nipples do. I took a pregnancy test and I think it shows positive but it's very, very faint. What do you guys think? I'm very freaked out. Oh and how long does it take for like evap lines to show up??Also, I'm not quite sure where to post this. So if I put in he wrong place, very sorry 😬.