FAINT line. Am I pregnant??

Even though glow told me not too I did a pregnancy test. I have a day off today and my husband is at work so I thought if I tested positive I could surprise him today. The test has a VERY faint line. I am running out to buy more tests. Please tell me what you think. The picture doesn't capture it well but please let me know. 
Below is comparing one I took yesterday (bottom) and one I took today (top). I used outdoor light.
 Another...