my monthely period comes one month after 30 or 33 days then the other period is delayed for about 50-55 days then it comes then the next period after 30-33 days then delays for 50-55 and so on I"m not married I haven't seen any doctors cause i know that they will prescribe birthcontrol pills for me and i'll not take it cause I'll not gain weight for any reason , I'm 21 years old and my weight is 54-56 kg at height of 164 cm I'm not overweight so i don't think it's a fats problem . I don't know what to do cause this situation is happening for about a year now