Hi thaks for your question.
There is no way to pre pone the periods.How ever you can postpone your periods from februsary 3 to as long as you want.This can be achieved by taking 5mg of norethisterone
4 to 5 days before the expected periods and continue as long as you want your period to remain suspened.However this will only delay the periods ad will not prevent the pregnancy
,for which you have to restore other means of contraception
.This is not the OTC medicine.You have to consult a gynaecologist for prescription for norethisterone.Hope this answers your question.