Haven't read all the replies, so sorry if repeating but just wanted to share my story.
I had my DS at home 10 weeks ago now. Was a long labour (46 hours from contractions being 5 mins apart), I was basically stuck at 5cms for nearly a day. I had a pool at home which I got in at 7cms and I had gas and air for the pain.
I also did a hypnotherapy course and thought I would be breathing my baby out using J breaths etc. The whole experience was lovely and I really can not complain.
I did have a third degree tear and had to go in to hospital for stitching, possibly because I did have to push my baby out? But he was 9lb and born back to back, so could easily have torn due to that too?
J breaths just weren't working, I could feel him going up and down with the breaths but not out. My pushing stage was 40 mins long, 30 mins of that was J breathing and the other 10 was forcible pushing as coached by the midwives. The tear may have been due to the midwife and how she guided him out not accounting for his Brucey chin. No-one even knew I tore as there was so little blood loss, it was about 1 hour after we noticed!
My BP was the same throughout the whole 46 hours and the baby's heart rate was exactly the the same throughout. His apgar score was 10 when he was born. Pushing didn't bother him at all and didn't really worry me as I was so calm from the techniques they teach you.
My best advise would be try not to get too caught up in the finer details and just go with what feels right on the day. Good luck with it all.