Inducing an early period?

[vengeful-muppet.livejournal.com]

So.... I'm going on vacation at the end of the week, and I'm terrified I'm going to get my period smack in the middle of it. This would be fine, except I'm going to be outdoors and hiking a lot, and dealing with a period in the middle of the woods does not sound so appealing to me. My first couple of days are so heavy, I need to attend to it about every four hours or so, even with a diva cup. I can already tell by my body that it's on it's way, but is there anyway I could coax it to come a few days early so I can deal with the heavy days at home? I know I'm probably grasping at straws here, hoping for some magical "period button", but anything will help. Also could use advice on how to deal with periods in the woods, in case it does come to that.