What could explain why i've been having irregular menstrual cycles?

i'm 17 and ever since i was fifteen i've had regular periods. but now i haven't had one since august. it's causing my skin to break out really bad. i don't know what the reason is. i'll admit that i don't have a 'healthy' diet. i'm 5'4" and weigh around 100 pounds and i tend to skip meals and then i might binge. i had unprotected sex in the second week in september. or could it possibly be that i've been doing too many crunches. i normally do around 1000 every day. i just don't know if any of those things might have anything to do with it being irregular. does anyone have any idea what could be causing this?

What could explain why i've been having irregular menstrual cycles?
The eating could do it or you could have an underlying problem. Check with your Dr. and get checked for STD's %26amp; pregnancy while you are there. Better safe than sorry!
Reply:drink coconut water (one) every day in the morning before going toilets for next minimum six months . It will normailze.
Reply:have u been under stress lately? have u just become sexually active? are you on BC pills? Have you missed any lately? there can be alot of reasons why your cycle is now irregular.. next time you meet with your gyno you shood consult his opinion.. if it becomes disrupted to your everyday life than u shood call and make an appt sooner. also, did u just start to exercise that much? that could it be also
Reply:working out too much can put stress on your entire body..not just internally but externally as well which explains your skipping meals and the break outs on your skin.





there was a time i put my body through alot of stress and didn't get my period for 6 months straight..i wasnt pregnant..just put my body through alot..then i got on birth control and pms became more regulated.





eat regular meals, work out as u do normally but change the work outs a bit so your body isnt just pushing for weightloss all the time. good luck