Ladies on the pill, I’m on the pill and I’m due for my next period the day we leave for the river…

Ladies on the pill, I’m on the pill and I’m due for my next period the day we leave for the river camping 😩 the trouble is, every time I’ve tried to skip my period, I still get it. It’s just a little lighter but I usually get it for longer than my actual period. I feel like it’s my body saying “stuff you, your suppose to have a period” but maybe I’m just not doing it right? I skip all sugar pills and go straight to the next pack but I still get it! And being up the river with limited anything is really not ideal. What can I do!?