I got my booking in appointment tomorrow too! If it's the booking in appointment you've got it'll mainly be a form filling exercise where you'll tell her everything from your name to the colour pants you're wearing (I'm joking about the last part obviously!!). Then you'll be given a load of leaflets/booklets and stuff. Not sure if they'll take blood, I don't know how far along you are so can't say. I used to have a terrible needle phobia so I can empathise, but try not to worry. Everyone is fully trained and they know what they're doing. Just breeeeeathe.