Oh Kirley hun, our DD was born 6 weeks ago and I was worried about the poo thing too. It didnt happen but if I felt like I needed to go I sat on the toilet in the labour room, besides it was a really good height than the birth stool. The midwives were very good at keeping everything low key and as private as possible. I remember many women told me that when your fully in labour you wont care. I did, I think everyone is different. I laboured in a bikini top in the shower and then I switched to a girly nighty when I got out. I even remember saying I dont want to poo, which even though I was reassured was fine I still felt like you do now.
Labour is one of the most amazing miracles your body will ever experience!I didnt believe that you instinctively know what to do until I birthed our little miracle. Good luck!