My period is almost two weeks late, but I took two pregnancy tests & they were both negative. I don't know what to do. I've been having some kind of pain or cramps for the past wouple of days & my nipples feel a little bit sensitive. If I was pregnant, the test would've been positive right? Could there be any other explanation for my late period? I haven't really been stressed at all so I don't think that's it. I need some advice! My last period was September 9th!