My first birth - generally good, very lucky in that it was all completely straightforward and at home, but longish at 30 hours. The bit where I lost my confidence was when they did some internals and I wasn't as far along as they thought I was going to be. I was so utterly demoralised and convinced I wasn't progressing. Also shattered. I started panicking. The last few hours of my labour were hell emotionally. Even as I was pushing her out (the pushing stage was actually quite quick, 30 mins) I was sobbing that it was failing and I had to go to hospital.
It did all progress naturally though, if slowly (about 0.5cm every 2 hours).
Also the internals were fucking painful! Which I wasn't expecting. As bad as the contractions.
I wonder if my clock watching was really counterproductive and now I'm pregnant with my 2nd I'm considering refusing internals, getting all clocks out the room, and letting my body do it at whatever (slow) pace it's determined to. Is this sensible? Is there a reason to have them?