How to make your period come faster?/Postpone it?/End it faster?

My period is supposed to start in about 4 days. But I'll be staying at my boyfriend's house from the 29th of June till the 3rd of July, and I don't want to have my period during that time. anything that i can do to make it come now, postpone it until the 4th-5th, or once i get it make it end in a day?