Will it end early?

Early menopause is when menopause occurs before age 45, according to one study, women who have their first period when they were 11 or younger are more likely to reach menopause before age 40. And early-menstruating women who didn't have children were even more likely to have premature menopause. Women are more likely to go through menopause early if they started menstruating before their 12th birthday.