FTM and hoping to labor naturally as long as possible.  Any moms who have had a natural childbirth have any good tips for getting through it? I'm looking for breathing tips, positions, and emotional and mental tips.  Or share any great resources that you turned to!  We are delivering in a hospital but we have a great doula who will help us.  I've told myself I won't be dissapointed in myself if I request an epidural but I'd love some tips on how to survive those moments and endure through the pain for as long as possible.