im 18 years old and i been having my period since i was 13 years old.
i got my period every 28 days but after i been on and off birth control till 2009, my period comes every 36 days for a couple months but then after a couple months it will stop coming and come when it wants. my period hasnt been comin on time for the past 2 or 3 months
does anyone know why my period will do that??