Dear Snehal, Hi & Welcome.
I can understand your concern.
Postponement of period is more safe as compared to preponement.
If you wish to prepone the period you can't predict withdrawal bleeding within the expected time. It may be delayed or occurs earlier which can mess up your wedding celebrations and it may make the next cycles irregular.
Hence I would advise you to postpone your period.
To postpone your period you need to take one tablet of
Norethisterone (5 mg) 2 times a day, beginning 3 days before you expect your period to start i.e., you may start taking the tablet from 13th November on wards.
You should take the tablets at the same time every day, one in the morning & in the evening. Continue it as long as you wish (maximum up to 2 weeks). Then stop the medicine. Withdrawal bleeding will occur within 3-7 days.
Since this is a prescription based medication so you need to take it from your doctor.
Wishing you a happy married life.
Kindly rate the answers if you are convinced.