Unprotected sex with boyfriend during fertile window...I had light brown spotting on Monday, the 14th that only lasted a couple hours. My period was due on the 16th, but absolutely no signs. My breasts are ridiculously tender (more so than usual), and my nipples were tingling this morning. I have been dealing with some cramps over the last few days. I took this test today and see what I think is a faint line. It's more visible in person. What do you think???