 [ Symptoms ] late period i am 25 on a product called herbalife to lose weight i am more active than ive been before was suppose to start my period this month but have not 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 [ Disease ] 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