Hiya, your birth plan sounds great! Hope things go according to plan. I agree with Leasha, and just say this is what we want but if things change, then we'll see what happens. Thats how I got round it all. And I did succed and have a drug free birth - much to the amazement of the midwives - Alyssa was persistant posterior so came out sunny side up. It hurt lots, but it being my first, I didn't realise that it was any more painful than if she had come out the right way. (we didn't realise she was posterior as she wasn't on a scan the week before), and luckily, the midwive didn't suggest any pain relief because she knew that we didn't want it. Ours was in a birthing centre as well - they are fantastic, but being in the hospital, we also had the advantage of getting the help we needed immediately after the birth. Also, being flexible like it sounds you are, really helps when things don't go according to plan (our labour did, but the afterbirth didn't).
Good luck and hopefully you can tell people to stick it up their bums afterwards when you've managed to have the birth your way!
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