When it comes to vaginal birth, you can't get a more important set of muscles than the sling that makes up your pelvic floor. But it's also one of the most overlooked part of a mother's health in her postnatal check ups. Amy Dawes from the Australasian Birth Trauma Associationwants this to change. She's set up a petition through change.org to ensure that every woman gets the pelvic floor support they need - both pre and post birth.