You’ve probably heard of menopause, commonly known as the time when menstrual periods stop permanently, and woman is no longer able to bear children. The menopause is a natural part of ageing that usually occurs between 45 and 55 years of age, as a woman's estrogen levels decline. However, around 1 in 100 women experience the menopause before 40 years of age.
BBC released a story of Annabelle, a 15 years old school girl with premature menopause, as part of its Young Reporter project.
Two years ago, Annabelle's periods stopped and she was told she has early menopause. She has also been told she will never have children naturally.
You can listen to her story on BBC website: Early menopause: I'm 15 and already know I won't have kids
Women going through menopause may still be able to have children by using donated eggs or using their own eggs if they had stored some before their menopause. Surrogacy and adoption may also be an option for some.