Let's face it, nobody REALLY enjoys taking a crap in the woods! Ok, well maybe some people do but I'd feel confident in betting that the vast majority of us consider it a necessary evil where the discomfort of dropping trou in the wild is not enough to deter us from the many other benefits the outdoors has to offer.
Lucky for us - and thanks to the the wonderful world of interwebz -there are plenty of resources available on the subject of "going primitive"! You really can find anything online! An if you're really into the subject there are even books written on it (illustrated no less!)
Here are some resources:
https://gizmodo.com/how-to-poop-in-the-woods-1599311733
https://www.amazon.com/How-Shit-Woods-3rd-Environmentally/dp/1580083633
https://www.youtube.com/watch?v=aSXzgx1euqE
Ladies, there are plenty of resources about your particular needs as well.
https://www.rei.com/learn/expert-advice/backpacking-with-your-period.html
https://www.cloudlineapparel.com/blogs/cloudline/5-tips-for-hiking-and-backpacking-during-your-period