I’m not sure why people are disagreeing with each other, OP can see for themselves that experiences are all quite different.
I have birth at home, had a spontaneous labour at 41 weeks and used a pool for the pushing/crowning stage.
For me contractions were like very intense period pains, it was like a wave, I actually imagined surfing up them 🤣 the start would be not so bad and then the feeling/pain would build and just as it began to feel unbearable the feeling would subside and I’d get a pain free break before the next one.
Transition was the hardest for me, that’s when I really had to go inside myself mentally and just let my body do it, it was probably the time when I felt the least in control. Brutal is the only way I can describe it. I can’t really remember the feeling just that it was a lot!
At the end of the transition stage by body started to push in its own, to start with I could see my belly look like it was pushing down without me telling it too, that was a bit of a surprise to start with! Especially as the midwife hadn’t arrived yet!!
I probably found the pushing part the easiest, crowning stung. I had a second degree tear to my perineum but I didn’t feel that at all at the time. Most of the stretching that I could feel felt like it was at the front around my urethra and labia. When I was pushing the contractions for me were roughly 2 minutes apart and it took several contractions of his head part way out before his head was all the way out. I only pushed during contractions. I didn’t mind that though, it felt very productive! I was still mooing like a cow but atleast I knew it was nearly over!! I was feeling babies head and the general area with my hand during the crowning and that really helped me understand what was going on. And it was nice to actually be feeling my baby’s head. To touch babies head feels surprising similar to the rest of down there, underwater it does anyway.