Kaz you wont get your downs result till you see your OB or you can call the office & ask for your results.
Down here they get sent off the royals children's & they combine the ultrasound & blood test results takes about a week i think.
There is a place in Pakenhan that does ultrasounds, they have the plasma above the bed & everything and the bulk bill for most ultrasounds. Maybe get a referral for them for your 20 week scan.

Saffi at least you have an end date in sight, Did you go over with L? Hope bub makes an appearance soon for you