How can i hold stale my menstration for a couple of days?
Answers: You can't.
It'll come when it wants to.
Just grab hold of some tampons and have fun.
Anxiety. Why would you want to do an wan thing such as that?! Unless you are on birth control, you can't. If you are on birth control, by go past the placebo pills that allow you to get your time of year for the week and start your new pack of pills. That will skip your time for a whole month, it's not ailing, just a personal preferance. May brides do this, so they don't grasp their period on their nuptial day/honey moon.
If you're not on the pill, sorry, but there is nil you can do...