Pooping in the woods?

okay ignore the typos cause im typing from my iphone. i have been camping with my mom, dad, and sister since last thursday, i havent gone number 2 the whole time. im leving wednesday. there arent any bathrooms. i have no exp. with this. all i have seen anybody do is pee and i have no idea what the pooping in the woods proced. is nor do I want them to know I have to. however, I really gotta go. what do I do? economical fall break sucks