E.R.
Well, all I can say is that I felt dizzy the day after I got pregnant, and that is how I knew. I am quite sensitive to changes in my body. I disregarded it, though, until I missed a period and then tested positive. With my second, again I knew I was pregnant right away. But I kept testing negative until about 6/7 weeks. So, you just need to wait till you are ready for the test and until then, try to stay neutral.