Pregnancy, Babies and Children Expo - Free ticket
Click on the link, http://www.pbcexpo.com.au/home.htm then select your city to print out your free tickets.
THe expo has a host of pregnancy, baby and kids exhibitors and is a pretty good day out. My recommendation is to leave a pram at home if you can as it will make your day less stressful when you negotiate the pram jam.
If you can't be bothered printing out the tickets, just go here http://www.pbcexpo.com.au/mothersgrp.htm and order them to be posted to you and your mothers group.