Any tips for a first time mum for when I go into labour?

Caitlan
Each day I get closer and even more nervous. I want to try have my son without drugs. To some that might seem crazy but I want to at least try. I'm 24weeks but his measuring on average about a week further. I'm small frame and actually scared of how big he looks like his going to be at birth. Everyone is saying his going to be above average. Anything that you have heard or from personal experience that helped with labour and birth would be appreciated.