How long does it take birth control pills to regulate your period?

Truly, the Birth Control pill doesn't regulate a period. It replaces your natural cycle with its own cycle of no bleeding and bleeding. Unless something else in your body changes, you are likely to return to your previous menstrual pattern once you go off the pill.

That said, you may have irregular, unscheduled bleeding in your first three months on the pill. After that, you should settle into a more predictable pattern. Some women think the pill will guarantee that their period always arrives on, say, every fourth Tuesday. That may happen, but it's not likely to be thatregular.

If after three months you're still experiencing breakthrough bleeding, or if it's troublesome in the first three months, contact your health care provider to discuss the possibility of changing to a pill with a different hormone profile.