False positive?

So confused! Been taking test the last couple days and everyone has showed up with a squinter line! The line shows up before the time limit but it is so light it's almost not there. It hasn't gotten darker. But it's been on every test. Why isn't it getting darker? Is it a ghost line? I was due to start today (14dpo) but instead I had some light pink spotting that was just when I went to the bathroom, nothing since. Super tired, sore bbs, off and on light cramps for several days. Please some advice!