Ok should I be concerned I have always had my period 7-10 days every month scence I got it I'm now 26 and wad a day late this month bleed normal but a darker blood like the end of my period for 3 days then very light the forth day now I'm 3 days with out bleeding but cramping like I have my period .... I took a pregnancy test but was negative .... I'm worried what should I do my boyfriend wants me to go to the hospital but I'm scared ....