i reaches my puberty at the age of 16 and now i am 17 . durin this one year i have got my periods just once    and that too after medication . recently i consulted a doctor and i got my blood test and ultrasound done .report ended saying that i have a small cyst in my ovary and my thyriod level was in the border line. doctor even told me to get my CA125 test done and its results were 10.4 U/ml and after taking progestrone for 7days i got my periods now and i can see very little bleeding and bloody mucus (jelly like)substance during the periods . i am really worried about this mucus like substance please help me...