Your doctor will confirm your gestational age either by revising your last menstrual period date or your early ultrasound. Then he will inspect your cervix to check its readiness for delivery by checking its consistency and length and dilation. Your doctor might offer to do a membrane sweep if the cervix is partially dilated, this induces the release of prostaglandins which can help start labor. If this does not work for you, you can decide with your doctor either to start labor induction or go for a cesarean section at once.