Hi Eliza, good to see that there are so many varying experiences on this subject! My DS turned OP in or just before labour, as the midwives had told me all thru pregnancy that he was in an ideal position!
It was my first baby and I have to say it was long and hard. Just want to give my experience as I wish I had been forewarned a bit, I think being prepared can't be a bad thing. My labour was 50 hours from start to 'crash' emergency CS (under general). I basically didn't dilate, only to about 7 cms and DS became severely distressed.
However that's just one experience, probably more use to say the things I felt during the long labour....
Sleep if you can, when you can! I had no sleep for over 50 hours because unfortunately my contractions were very regular, and painful, from the beginning. So if you can sleep, do it.
Pack a bag to take to hospital that has twice as much as you think you need, as labour could be long. Take ridiculous amounts of t shirts or nighties, pants, socks, flannels or sponges, take snacks to keep you going with energy....warn your DP/DH/mum that it might be long so they need to remember to keep encouraging you, and keep massaging whatever you need massaged....
Get in bath or water pool as soon as you can for as long as you can!
Don't let anyone pressure you to lie down if it feels horrible, it felt hateful to me! Don't assume the midwives will know that it feels horrible because of OP presentation, mine certainly didn't seem to have a clue and kept pressuring me to lay back in the bath.
If it is a long time, rest upright to save energy..I walked round like a lunatic in order to have an active labour and just ended up completely exhausted.
Mine must be one of the more negative birth stories on here but I survived and bonded immediately with my gorgeous boy, so do not worry!!! best of luck x