Oh hun! A faint line i'm hopeful for you and keeping everything crossed!
i'm still having headaches on and off, think that's just our body adjusting to pregnancy hormones. With my last pregnancy, which resulted in Mr 1 year old now, i did the same thing, kept testing to see if it became darker. Lines were varying from darkish one day, to less dark the following day, to darker next day. I think sometimes the ink in tests differ?! With my chem, 4 weeks 2 days no real preg symptoms and felt just like AF was about to arrive.