Thank you so much everyone, I really enjoyed reading all of your replies.
I am reading 'Birth Skills' by Juju Sundin so I think my basic birth plan will be to try those methods, but be open to trying medical pain relief if I need it.
For me it will be difficult not to feel guilty about it due to my mum pressuring me constantly. She is very anti-medication and has done it all my life so I can be as rational as I like but I still feel guilty for taking so much as a panadol!
If I end up having pain relief in labour I am not going to be able to tell her. I am definitely not going to impose my views on my children the way she has done with us, it's just not helpful and is the opposite of supportive.