As someone who has recently gone through having shoulder dystocia, I am strongly considering a c-section next time if it appears that i am going to have another large baby.

My baby was macrosomic, over 4kg and his head came out, but then his shoulders wouldn't. After three manoevers he was out, but had to be resussitated. It was frightening and life changing, it is not something I would want to experience again. He is very lucky that he didn't get nerve damage as well. I was in optimal position when it happened, I was birthing on my knees leaning over a bed. I paced my whole labour and kept upright, I actually didn't even sit down at all, let alone lie down.

He was in the same position as my firstborn (posterior) but my firstborn was over a 1kg less in weight. I birthed his shoulders fine. I have read and been told by both the midwife in attendance (I did not have a dr there until the emergency happened and one rushed in) and OB that his size contributed to the shoulder dystocia.

Articles like this on emedicine
Neonatal: Macrosomic neonates are at risk for shoulder dystocia and birth trauma. This risk is directly related to neonatal birth weight and begins to increase substantially when birth weight exceeds 4500 g and particularly when it exceeds 5000 g. Brachial plexus injury is rare, with an incidence of fewer than 2 cases per 1000 vaginal deliveries. This risk is approximately 20 times higher when the birth weight is more than 4500 g (McFarland, 1986). Mulik et al reported a higher incidence of NICU admissions for neonates with a birth weight higher than 4500 g compared with newborns with a birth weight of less than 4000 g (9.3% vs 2.7%). Risk of shoulder dystocia was 10 times higher in the larger babies (4.1% vs 0.4%).
is one such one that refers to size being an issue with shoulder dystocia. In fact, if you google shoulder dystocia causes, there are many articles that come up indicating that a large fetus is a risk factor.

I want to know for my future babies, can all these articles, dr's and my midwife I had be wrong? I mean, it makes perfect sense that a large fetus will contribute to a shoulder dystocia risk. Yes, many women can and will birth a large baby with no problems, but someone like me may not. I have a partner that is over a foot taller than me, he is a large person, I am small. So surely there can be cases where a women's pelvis is just not big enough?

I'm not a midwife or doula, I'm not trying to argue, but I'm someone that went through shoulder dystocia and it is frightening and horrible. I have a big fear of stomach surgery due to a botched one a few years ago, but seeing that happen to my baby was far more traumatic than surgery which is why I will opt for c-section if having another large baby and I know this will be suggested to me by OBs.