The methods of delaying menstruation are: taking medicine: 1, taking contraceptives and short-acting oral contraceptives, starting from the fifth day of menstruation, 2 tablets a day for 2 weeks, and increasing to 4 tablets a day from the third week;
2, Fukang tablets or Funing tablets, oral progesterone, starting from the first day of menstruation 16, daily10 mg; 3, mifepristone, non-hormonal, starting from the fifth day of menstruation, 25mg daily continuous oral.
The second way is to use recipes, that is, to adjust by diet, but one week in advance.
As for recipes, you can browse related articles on 39 Health \ website, where there is a special topic about delayed menstruation, because it seems that there are many. I don't know which one suits you. Go up and have a look for yourself, but I personally don't recommend you to take birth control pills, which is very harmful to your health and may lead to irregular menstruation. Although it is the college entrance examination, in the long run, it is better for you not to take birth control pills, but to listen to professional doctors.