I am 20 years old got my period at 13 and my periods are very irregular...ive gone six months without a period thats hiw weird they are but when i get them i get them for two weeks! Now im at a stage where ive been trying to get pregnant for the past 7 months and within those seven months ive been perscribed birth control..because my doctor said the only reason why i dont get my periods is because i have polysistic syndrom (cyst) on my ovaries...told them i hate taking BC and they always tell me Birth control is the only way to get rid of the cyst...but if im taking birth co trol how am i supposd to get pregnant?????