I wasn't exactly uniformed, I'd thouroughly read the pregnancy/birth/ postnatal book, including the sections on complications and went to the NHS sessions, but I was niavely expecting to follow the family tradition of fairly quick VB births, not a 40 hour labour ending in EMCS after 2 hours of pushing and ending up in HDU due to complications. The pregnancy was low risk, there wasn't any particular reason to expect that outcome, and it did hit me hard for some time. My second birth helped a lot.
Better engagement from medical staff would have helped. Not being dismissed as "pregnancy aches and pains" by the GP at 34 weeks when undiagnosed SPD had me crying at the checkouts of the supermarket in total agony as I conceded defeat at such intense exertion. 3 weeks later, I was unable to leave the house independently. I didn't feel engaged with during birth, a lot of which was down to an absence of effective pain relief during a long, exhausting overnighter, bearing in mind I hadn't slept for more than an hour at a time due to SPD for many weeks. Staffing level was probably a lot to do with it. If I'd been asked for an epidural, that would have relieved a lot of trauma. Instead I got the pethadine that I didn't want and was really the only thing on my "go with the flow" birth plan. At the point it was offered, I was so much in pain, I'd have consented to absolutely anything. Pain relief should have been mentioned before breaking my waters, not after my contractions were rocketed up several leagues.
The second birth was much better because I was much better engaged with. The birthplan filled two pages but was used appropriately. It was a set of starting points, total no-nos (absolutely no pethadine under any circumstances and refusing all consent for it as DH had consented to the second dose when I was too out of my head in a world of fire- I only knew about it after through reading my notes) and my preferences on some directions of development (e.g. epidural if I found myself immobile anyway). It certainly wasn't a plan A ending, but wasn't traumatic because the MW was great at keeping me updated with devlopments such as telling me she is about to press the red button and the room is about to get busy. The SPD was also better dealt with although I self-identified it and did a lot of self help, but generally I felt I was listened much better through pregnancy and birth.
An opportunity for a postnatal debrief and a check a few months in could be helpful to women with birth complications and injuries. Sometimes difficulties aren't yet apparent by 6-8 week checks, and they are pretty perfunctory anyway. I was stunned that emergency major surgery had so little follow-up, whereas I did have a 3 month check for 3rd degree tear.