More research is being done on prevention of early menopause and recent studies found that pregnancy and breastfeeding may decrease risk of early menopause.
Breastfeeding May Lower Risk of Early Menopause
Ovarian Cancer Prevention, Screening, and Early Detection: Report From the 11th Biennial Ovarian Cancer Research Symposium
Release: Pregnancy, breastfeeding may lower risk of early
Breastfeeding may help prevent cognitive decline later in life
Breastfeeding lowers your breast cancer risk
Surprise second pregnancies: How can breastfeeding mask the signs?
Distribution of 1031 cases of epithelial ovarian cancer and 2411
Early or premature menopause: causes, symptoms and treatments
Premature Ovarian Failure American Pregnancy Association