I had ds4 in a pool. Was in lab our for an hour and in the pool for most of that. The contractions before I got in the pool were really strong and ahem I spent a bit of time on the loo having a clear out.
Practically leapt into the pool as soon as it was ready and took my bra off once in, already knickerless.
Spent time on all fours mainly and sitting/squatting, I clung on to dp's arm during contractions and had lots if gas air.
My body took over for pushing and I didn't consciously push at all.
Ds4 was 10lb 13oz and the midwife scooped him up and I held him in the pool whilst I delivered the placenta, natural third stage, once it was delivered we clamped and cut the card and the pool was a bit murky by then so dp took ds4 and I got out and showered etc.
It was lovely, best birth of my five, wanted a pool birth for no 5 but Madame had other ideas and was back to back and I needed syntocinon drip, it was still a natural lab our but I missed being in thee pool as its so soothing and much easier to move etc.
Plus I didnt tear at all with ds4 despite his size, sure the water helped with that!