How can I postpone my period or else make it come early?

Answer 1

Birth control pills

Answer 2

There are some forms of birth control that can regulate the timing of your period. However, missed periods (and therefore the build-up of your uteran lining) can be dangerous, so you should never do this without the advice and supervision of your doctor. Periods are often induced using progestin.

Answer 3

run 3 miles per day and it will be late.