Prenatal care about AUSTRALIANS

Does anyone know if you MUST have prenatal care in Australia? I am unable to find a doctor supportive of my vbac and will not be bullied into not trying simply "because"..... Due to this, I feel like just doing this on my own till labor starts and then turning up at the hospital. I've had 3 kids prior to this and was bullied into having c-sections for no medical reasons at all, the doctor simply said I had to even though I've never had any tests at all to determine this. I've had private ultrasounds and baby is healthy and growing well. 
I can't find any information on wether or not there will be repercussions for not seeking prenatal care. 
I HAVE DONE THE RESEARCH ON VBACS AND HUNDREDS OF WOMEN HAVE HAD SUCCESSFUL ONES AFTER MULTIPLE CSECTIONS!! This is not about that AT ALL!  
The question is simply...... Is there legal repercussions for not getting prenatal care?! And this is for Australians..... As its a question about Australian law!