My boyfriend & I had unprotected sex May 2,2017 , I took a plan B about 6 days late. Thinking maybe it would still work. It is now may 16th and my period is due today. I have been having pressing pains on my sides. Very minor stabbing sharp pains ( almost like cramps ) on my right Breast , in my abdomen and bear rib cage. Oddly , my period is taking a little long to come on today ... normally within the middle of the night. So I prepare before I go to sleep. This morning I woke up& check no period. But white/clearish/ little brown discharge. I'm nervous so I took a pregnancy test ( clear blue & family dollar test ) but came back negative. Should I be worried ? I'm also having vivid dreams of positive pregnancy test ... COULD BE MY CONCIOUS !