Late period big trip

Tory • I'm in love with my best friend and I couldn't be more happy.
How do I induce my period as it is late- I took a test and negative. I have a trip in three days and usually the first three days are the worst so any tips on how to induce it today would be super helpful! /.\ I just don't want to pass out on my trip from blood loss and Texas heat. :/