26 years old havng weight 44kg.m getting married on 20th oct.and I have pland honeymon aftr that.my periodz date vary from 18 to 26 oct.I want to take pills at d start of octobr so that periodz happen before and I can be free on my weddng and honeymon.kindly guid me.my cycle is mostly of 25days or 28 days

Talk to your doctor about this. There are forms of birth control that will delay your period. If not, just promise him a good week after the red river has stopped flowing.