Soo stupid....can't get pregnant.... it's all my fault....!!?

I have just turned 16 and las year at only 15 years old i got told i needed a hysterectomy due to a hormone disorder and severe adenomyosis... they also said i had cystys on my ovaries and a fybroid tumour in my uterus... as i was only 15 i refused point blank to have the op and in the end the doctors gave in and said they would review my situation in 12 months... it has now been 12 months and they have told me i need the hysterectomy as things arn't getting anybetter but infact worse...the thing is i felt really poorly all the time last year but after being put on desergestorol (a hormone tablet) i have felt fine and hae had many treatments for the other things... i dont want a hysterectomy but am i doing the right thing by refusing to have it again... i am soo young and scared i dont know what to do :S ...