Birth without pain meds advice..?

Rachel
Hello mamas! 
I am only 16 weeks pregnant but really want to do a natural child birth without pain meds. I feel like I need to start research and get all the advice I can for this. 
I'm not in any way putting those that chose to get pain meds down at all, birth without pain meds is just something I want to do. 
When labor comes, it might be so unbearable that I opt for the pain meds, but I want to try try try to go without. Any moms out there have tips or advice for me? Anything to help me prepare?? Thanks in advance! 
And by natural birth, I mean just no pain meds. I will be in a hospital, so water pools will not be an option. 
Thanks!