So I have never had a late period...on February 2 was my last period last month I spotted very very light for like a hour and it stopped...since then haven't seen no sign of my period....this month Well we are on the 7 and still no period...have took four pregnancy test and all negative...last night took another one still negative....don't know what to think or do...can someone please give me any kind of advise...please...thank you all....