Playing that waiting game

Today is the supposed day of my missed period. I've been having nausea, light cramping, serious hunger, and increases sence of smell for 2 weeks. I have been sure I am pregnant. It even feels different down there. I have taken so many tests, all of which have been negative. I thought today would be the day that certainly a faint pink line would show up, but no such luck! Feeling crazy, a little out of my mind, and generally just super impatient about all these symptoms but no plus on a stick. Surely if I were feeling such symptoms so strongly that the hormone would be picked up by now, right?