I'm going to travel, but I think my period will come. There are many kinds of contraceptives written online, which one is good?

Emergency contraception has great side effects. You can menstruate in 2 days, but it is not recommended.

Generally, oral short-acting contraceptives can delay menstruation, but there are many brands, such as Mafulong and Daying 35, and short-acting contraceptives have little side effects, so you can use them with confidence.

The use of short-acting contraceptives is to start taking them on the first day of menstruation. For example, if the day of menstruation is Monday, you should take the box marked Monday, stop taking medicine for 7 days after eating that box of medicine, and take the next box of medicine on the eighth day.

Generally, I will menstruate 2-4 days after I stop taking the medicine.