Update- had a beautiful DS at 10:21. It was a great birth because of DH being a superstar. Every time I had a contraction he was up massaging my back and legs to help me get through it. The midwife and student midwife were both excellent as welI. Have had a 9.14 ounce baby and no tear -no need for stitches. Couldn't believe it but they had a really good technique.
Loving holding baby but he is a hungry thing and has been stuck to my breasts all night. Got about hour and a half sleep since yesterday morning.
Thank you all for your support. So nice to get messages while we waited for head to get lower. 
Wish I had know this time yesterday-
- trying to do it without drugs is way over rated!
- I should bring four sets of pjs (after birth bleeding is horrendous)
- bring more food and snacks - you don't know what you will fancy at the time
Good luck and please feel free to ask questions. I'm sure I've forgotten things that would be helpful to know.