Murdoch private ED would cost you alot of money to see a Dr there, but I think there is an A/H GP there. A/H GP would generally bulk bill you if you have a health care card, if not you might pay for either medicare gap (about $20) or full fee (about $50), then you can claim back some money from medicare. There is an A/H GP opposite RPH in the city, they are open from 6pm till 10pm, you can just walk in and will be open tmrw from 12pm to 10pm.
Have you had a BT? do you know your hcg levels? if you do you can compare them. If not you could get BT, then when you get the results if the levels do not corrulate with PG in weeks, it is unfortunatly bad news.
If you have had a missed m/c you will probably bleed, but it could take a couple of weeks, or you can get referal for D&C.
I do hope that your dates are miss calculated and that you are not as far along as you think.