hi first could be the diet your on and being extra active. you could be just skipping a period this happens. but if you still worried go see your doctor and get a test done there. but think back have you been having unprotected sex within your last cycle? do hope this helps. good luck
late period. i'm 25 on a product called herbalife to lose weight i'm more active than ive been before was suppose to start my period this month but haven't. took a pregnancy test to make sure i wasnt pregnant it came up neg. i do feel bloated and cramping but no period. why? kinda freaks me out