hi i am 26 now....i had irregular period since last month ..i.e i got my periods in 21 days..this month i didnt get my periodssince it was almost 40 days...for the past 2 months i am doing regular heavy exercise.,going for gym regularly doing 1 hr exercise....many people are telling it was because of heavy exercise i am doing and also i lost 1 pound ...please tell me the suggestions to get regular periods.