Hi. I don't know how to interpret the lines, but I would recommend using the test that says "Pregnant" or "Not Pregnant." It's what I used. They're pretty foolproof and you can get the drugstore version cheap. I got mine for $12.99. Plus, you can test up to three days before AF is due. Good luck!
P.S.--I felt totally normal when I took my test and I'm almost 6 weeks pg.
faint lines in HPT? 
Linear Mode
