What if you Get your period three weeks early while on birth control?

Answer 1

Unscheduled bleeding on the Birth Control pill is more likely if you missed pills, if you're in your first three months of pills, or if you're taking medications or herbs that interfere with the pill (e.g. St. John's Wort). If the bleeding happens again, is troublesome to you, or is accompanied by pain, painful urination, or unusual vaginal discharge, contact your health care provider.