I would like to know if there is a way to delay or advance menstruation to make the trip more pleasant?

Hello,

Do you use a contraceptive and if so which one and when is your trip planned?

I just saw the answer to my question. So unfortunately no, the only way to modify your natural cycle is to impose an artificial cycle (so taking hormones) it remains a possibility if you have at least one full cycle before your vacations.

Absolutely, with continuous intake during the vacation period even if you are at the end of a blister pack.