Other evidence suggests that 10 or more years after you stop taking the pill, your breast cancer risk returns to the same level as if you had never taken birth control pills.

In one study, use of birth control pills led to a higher risk of premenopausal breast cancer in women who took the pill for four or more years before having a baby.

And if the pill is mostly causing the rare triple-negative type of breast cancer, the effect could be muddied in a study looking at breast-cancer disease overall.