Late and still negative..

As of Saturday I was two weeks late for my period.. ive been testing every three days or so, but they're all coming out negative.. still have seen any of my normal signs of a period coming. I have very tender breasts, not my usual discharge, im a little more emotional than usual, some odd cravings. But just not sure what to think of this, or what i should do.. wait or go to the hospital.. i am about three months off bc. And family history shows the woman are very fertile, but usually dont get a positive at home pregnancy test until around four weeks after a missed period..