A few years ago I was the midwife for a client having her first baby at home. The midwife assisting me actually had to cover for me for most of this client's labor because I was attending another lady's birth, so she continued to act as primary when I arrived during our lady's second stage. Our client was only comfortable pushing in a dorsal recumbent position, interestingly, and we ended up with a moderately severe shoulder dystocia. Since the other midwife had less experience with SD, I stepped in and had to work pretty hard to get our baby out. We did have a good outcome though I think we both had more gray hairs as a result!
When this client became pregnant for the second time, she and her husband opted for a homebirth again, but they were pretty worried about another shoulder dystocia. We talked a lot about options for second stage and I made some recommendations about positioning. Mostly, however, I did my best to reassure them that this was another experience, another baby, another labor, and to remind them that shoulder dystocia is about angles as well as size. Our lady worked on trusting her body and the process.
The day of our client's labor finally arrived and all went very well. She labored almost entirely in the water and when she reached full dilation she felt compelled to leave the tub. She began pushing in a kneeling position as she felt the urge. Very soon a little girl--bigger by a few more ounces than her older brother--slipped out just as easy as could be! Seeing that little shoulder sliding out was a wonderful sight! The experience was very healing to both parents and I think they are no longer worried about shoulder dystocia.
It's good to be prepared, but history doesn't have to repeat itself!
Hugs to all,
Marla