Ovarian cysts may cause infertility
and irregular menstruation
and vaginal spotting apart from pelvic pain
. Based on the size of your cyst, and your age, it is likely to be functional and can be treated medically. Surgery is indicated for cysts larger than 4 inches and also in older age groups. A functional cyst is also not likely to interfere with fertility. Also, the cause of your previous still birth should be assessed before you start trying for another baby. Please follow your doctor's instructions. Wish you good health.