I had fortnighly scans at $160 a scan all throu my preg this was all required as I had surgery at 12 weeks to close my cervix. PHI wont pay for scans unless you have been admitted to hospital and the scan was done then, the only thing that may give you alittle grace is that medicare threshold is obtainable. AS for the pricing I dunno depends on each clinic and what they charge over the scheduled fee abit like a specialist.