I am not sure what this question is even asking. You make it sound like study hall or a hockey game. Every period I've ever had has cost me nothing, so they've all been free periods. Can you clarify the question and describe what you mean by "free periods"?
PERIODS..................................................
during the menstrual cycle
When you become pregnant, your menstrual cycle is delayed for next ten periods. That means you will not get menstrual bleeding till delivery.
First of all, it's menstrual. Second is the menstrual cycle is the time space between periods hope that helps! :)
Birth control pills will help regulate the menstrual cycle.
Menses is the commonly used term for menstrual cycle. Monthly periods is another commonly used term.
If you that the MAP then you can have two periods.
Orientation has nothing to do with menstrual cycle.
You can not stop a menstrual cycle without removing your ovaries. Some birth control pills allow you to skip periods, but this does not stop the cycle.
It means related to a woman's cycle of periods.
Irregular menstrual periods can also result, and interest in sex may diminish.
Most often missed periods occur during pregnancies.