What Is The Treatment To Delay The Menstruation?

hi dr i am 26 years old ,i have migrain and i took propranolol 80 mg and amitriptayline 25 mg for prophaylaxsis and zolmitriptan 5 mg during attack i want to delay my period coz i have atrip about 2 weeks and usually it starts at 30th of the month and i will travel at 24th of this moth.please how can i stop my period for this 2 weeks ?? thanks alot