If you want to avoid having your period during an important event like your honeymoon, an important athletic event, etc. than birth control pills can alter your monthly cycle. Your doctor will need to help you with this since birth control pills are prescription. If you are already on birth control pills the trick is when you are finished with the active birth control pills do not take the inactive pills but immediately start on the active pills for your next pack of pills.
you cant really unless your on the patch..... then you dont ever hav to hav yer perod.
You can't unless you are on birth control.