there is no way to delay her period. to attempt to do it may even be dangerous, cos i certainly dont know any healthy way to do it!!

the only way it is possible is if you are on birth control pills. when on birth control, your period will come a couple of days after finishing your active pills. say for example you are due to finish your active pills on the 10th of the month, but on the 15th you are going on holiday, you could finish the active pills on the 5th instead so that your period will have come and gone by that time. or you can delay it by taking some extra active pills. as long as you are not taking any more than seven inactive pills you are still protected.

it's not advisable to do this regularly, but i would do it very occasionally, say if i am going to a festival or something.

i'm gonna assume your friend doesn't want to be on the pill though. either that or she wouldn't have time to sort it out between now and the wedding anyway.

She really needs to get on birth control now and if she's on it for a few months before the wedding, she'd be able to skip her period.

BTW- Do NOT shorten the active pills, always take all of the active pills. If you want to skip your period, it is better to just not take the placebo week- start the next pack of active pills right away instead. It is safe to do this as often as you want. Otherwise you compromise your protection from pregnancy.

If you are not on the pill, then there is a medicine called norethisterone, which can be started three days before a period is due. It is continued for the next seven days (when the period is due) and then stopped, when normal vaginal bleeding will take place.

Both of the above medications are available on an NHS but the norethisterone only needs to be taken as needed, whereas the pill really needs to be started one to two months before necessary, to be really effective.