Many women book home births through their GP surgery with no problems. You can also book your home birth and antenatal care directly via a midwife; and there are a number of ways you can contact a midwife directly.
You can ask in your GP’s surgery if a midwife works from the surgery. If she does, then you can ask to see her directly.
You can also write to the Head of Midwifery at your local hospital and ask to be put in touch with a midwife. When you have your first antenatal check with your midwife she should discuss your preferences for care during pregnancy as well as where you might choose to have you baby.