i didnt try this but a friend of mine leaned up with her back towards her husband while he held her up and she gave birth that way she said it was 10 times eaiser than laying down
i found that with my first i stood up in the shower and swivled my hips helped aswell just try a few different things and you should find whats confortable for you good luck i hope it goes well for you just be open to try what ever your told by the midwives there great in labour rooms and they have ideas aswell
good luck
raewyn