Pregnancy test

heather

So I was supposed to get my period on the 9th, and I still haven't gotten it on the 12th. I've done three tests now, all are seemingly negative. I only took photos of one.

If I'm not pregnant and am not having my normal PMS symptoms what's happening?? Very nervous. Anyway, I feel like i'm seeing a line that isn't there. Please give your opinions on if it's there or not :-)