I'm not exactly sure if I have anything to post in this thread, but I can tell you about my births and how they *could* have gone wrong, and how they *did* have interventions.
My first birth was in the hospital with an OB, but not the one I had been seeing. She had wanted to induce me on my due date, but I postponed it, and ended up going into labor on my own 4 days later during the weekend. When my water broke, it had meconium, so in the hospital they gave me an amnio infusion.
I hadn't slept all night, and was having back labor because the baby was posterior. I was going to try it without pain relief, but I ended up having the epidural fairly early on. That lead to a lot of things, of course, like blood pressure cuff, IV, fetal scalp monitor, catheter. Then after awhile, the baby's heart beat stopped not recovering well, so they gave me oxygen to see if that would help, and it did. Then the nurse would check me, and she started doing this kind of twisty movement on my baby's head. She said she was just making a kind of swirling movement on the top of the head with her fingers, because the baby was posterior. I asked if that did anything, and she kind of laughed and said no, but it was just supposed to be a kind of encouragment to the baby, showing her how to turn.
After awhile they wanted me to push and that was horrible, but finally the doctor came and turned the epidural way down as I wanted, so I could feel something. He also encouraged me to sit up a bit more I guess so I could push more easily. Then all of a sudden things started happening and the baby was coming out. She did actually turn and come out anterior, not posterior.
I had a big hematoma on my perineum and got a few stitches more up in the vagina, not really on the perineum. I also had a bit of retained placenta. At this point I could feel everything and it was very odd and painful, but I swear the most painful thing was when one of the nurses strongly massaged my uterus after everything was out.
I think, all things considered, I was lucky to not have ended up with a c-section, and if I had my regular OB, I might have, because she told me a number of times I might have to have a c-section.
My second birth was at home, also meconium in the water, but things just went along fine until I was pushing. I pushed quickly, tore, and then the shoulders got a little stuck, so the midwife kind of had to tug her down. And then I needed stitches, and I was bleeding a fair amount and had a shot of pitocin and methergine, but it was all fine. The tear healed really quickly.