I was in labour for 48 hours with my first, 40 hours of it was 'slow' labour, 8 hours in established labour I think. I had a third degree tear which they had to stitch under a spinal anesthetic.
My second was a lot shorter, I think I was in labour 5 hours with him, 1 hour in established, well, went from ready to push to giving birth in an hour, that was the scary one, as I had a monitor on me as his heartrate dipped with every contraction, and also had a drip in my arm as I needed fluids. 2nd degree tear with that one which I can't remember all that well, but I do recall even with local anesthetic was quite painful.
Third labour, even shorter, natch, went into hospital at 2am, for reduced movements, sat on monitor for an hour. Given a quick sweep, sent home, I was back at about 8:30am ish, gave birth by 9:30am.
Tore again (!) 2nd degree, but oh my lord, I had two full syringes of local anesthetic, and it still hurt, I remember screaming and cursing the poor nurse stitching me up, it was extra painful as I was told I had tore through my clitoris. Not fun.
Buuut you get a lovely squishy baby at the end of it, so there is that!
I know people are gonna flame me for being so graphic, but I wish someone had warned me just how bad it can be before I had any of my children! I walked in to hospital having my first knowing absolutely nothing, I thought I was just going to hold baby to my breast and they would latch on, it would be beautiful and they'd feed like a dream when the reality is so much different in some women (not all! I know! I'm one of the very few awkward ones!)