faint line??? but all negative after 😭 what's going on

Tessa
So several days ago I took a pregnancy test (way wayyyy early) and I got a second line. I was extremely excited as I figured that since I saw a faint line SO early that that would only mean that it should get darker from there. However. I've retested everyday and have gotten all negatives 😭 AF isn't due until Friday still, but how is this a thing?!?!?! I'm seriously so confusedÂ