I had my period 4 days early, it was moderate flow, and ended1-2 days early. But my breast have remained extremely sore. They hurt and are full. So I took (a few) pregnancy tests. The Walgreen's +/- test may have a faint positive. Test #1 had a couple of dots going up the positive line. #2 had a faint, complete line on the vertical line but it was not thick like the horizontal line. Test #3 looked like #2, faint, thin positive line. A few more tests later the same day, are all clearly negative. So my questions are:1.)Is it a positive if it's a very faint, thin line of the vertical line? 2.)Why are my breast so sore, I'm tired, a tiny bit crampy and feel like I'm going to have another period in the same week....does early pregnancy feel like this?? Thanks!