It really depends on your birthplan what worries I can soothe.
with the medications they have now, they can pretty much control the speed of your labor. It's very rare that they just let a momma stay in pain for long and let the labor last for days. The only way I could see that happening is if you refuse medications. If you know what you are willing to tolerate then you can make good decisions about what you want to experience and what you want to avoid.
There are some definite gross parts too it. With my first son I had a full bowel that came out before the baby was able to be born. But the little turkey was 6 days late and I had been on bed rest for months. My labor was fast though, 6 hours. My pushing was pretty in effective and I kept holding my breath during the pain which you shouldn't do. remember that.
The next time I was more prepared. I made sure that I didn't have to "go #2" before delivery. But I was still in a lot of pain having forgone the epidural again. It was the middle of the night and the nurses kept shushing me. The gross part was I was on oxygen through a mask and it dried out my nose so when I got a nose bleed it filled up my mask. It was a really mess when I exhaled through all that blood. Scared my husband big time. Again I held my breath and that was the reason I had the mask in the first place. I also pushed really hard and broke cappillaries in my face so when Gman met me he had a mommy with red stripes and purple polka dots. My labor was a little less than 5 hours and again the little turkey was 6 days late.
My third time around I had the epidural. It slowed my labor down to about 9 hours. It was wonderful. I slept through most of the checks and stuff. The epidural helped relax my legs so much that they were rotated well out of the way and my husband really could see what was going on. Tiger was delivered early, at 38.5 weeks just cause the wanted to schedule it. I have to say this was the best pregnancy because I could stay active more and was busy up until delivery.
NOW having a supportive birthing partner really helps and taking the classes is nice too so he knows what he's doing. My first husband was more grossed out by the whole pregnancy and delivery but turned on my the bowel movement.
My current husband treats me with reverence because giving birth to his two boys was an awesome experience for him and he loves me more for sharing it with him.
It really won't be so bad so don't psyche your self out this early. See the doctor every time you need to. Eat well, rest as much as you can but be sure to exercise everyday. Yoga will keep you toned enough to push effectively. Enjoy this time alone with your baby because soon enough everyone will expect you to share him.