I am 21. I have been going privately (this makes a difference) I didn't have a 12 week scan but had the routine 20weeks scan it cost us $200 from womens x-ray unit. We got $80 back from Medicare. My friend is having bub today (I am today or either tomorrow) so we are the same pregnancy dates wise. She has gone through public and hasn't paid for a scan, blood test or anything. Hope this helps