It looks like there might be a faint vertical line anyone else see or no? I’m 8 days late for period

EDIT: the vertical line disappeared after a couple minutes. I’m so confused someone help please.

I have had mild cramping since the day I was supposed to start my period (8 days ago) as well as nausea and back aches and no appetite. I also have had a lot more discharge recently that is white ish, and I had sex on the 13th