I am 12 dpo, day 30 of my cycle, which is between 30 and 34 days long. I used a First Response test and at first it looks like a big fat negative, but if I hold up the test to the light, I can see a very very faint line. Has anyone used First Response and had this happen? I don't know if I am just seeing the positive line that is always on the test by having light go through the window and I'm not really pregnant? I opened up a new test to see if I could see through it and see lines and I can't. I will test again tomorrow, but I wanted to see if anyone knows about this and can give me some hope... it's going to be a long day until I can test again tomorrow! My breasts are also very sore, I didn't have this with my first pregnancy, but they feel like sore, almost like when I wouldn't breastfeed my baby for awhile and they would get sore. I've never had any breast pain with my period. Thoughts?