Oh i'm so sorry for the situation he's put you in. It must be pretty scary for you right now.

I know quite a few single mums in the town that I live in and yep, it can be tough doing it on your own and also financially, however, there is lots of support around. Definately talk to Centrelink about your entitlements and you should be able to get a Health Care Card. Things such as child care when they're older (if you're still a single parent) will be subsidised by Govt and things like 3 yr old kinder are covered (well in Vic, anyway) if you're on a health care card. It must be hard to make a decision when those around you are pushing for one thing. Hopefully the counsellor can go through a lot of things with you and help you clarify what YOU really want to do.

If you're worried about 'quality' of life - kids need to feel loved, nurtured and supported. If you can sort out the basics like a roof/rental assistance, money for bills and food (get DH to pay $), then they don't 'need' anything else. Education and health care (as much as we run them down) are pretty good in this country. You can always return to p/t work or study when they're a little older and in child care or school.

You can get groceries delivered to your front door or take the kids with you - supermarkets have baby trolleys (even twin ones) and/or you can pick up a second hand baby carrier and wear one/have one in the trolley while you shop. I take our 3 kids each week (4, 3 and 6 months) and it's a fricking nightmare, but we get through it. Aldi nappies are much cheaper than other brands and I mix them up with cloth nappies to last longer between shops. You can get baby stuff second hand or given to you. There's loads of people who pass their baby gear on and if you put your name on a noticeboard at your local playgroup, I'm sure you'd get given some baby items for free. I guess I'm just trying to give you some ideas of how you could manage on your own with your twins b/c it sounds from your original post that abortion isn't something you're keen on (?)

Every parent struggles when they first become a parent and I'm pretty sure it's doubly hard with twins and lack of support. I'm not sure if there is a local BB Perth group of mums that you can link in with? Also, a new mum's gp (and local twins groups) can be invaluable support when you've just become a parent, who you can see each week/develop a support network and friends who will know your kids and can help with babysitting each other's kids when they're a bit older. My mum's gp was a godsend.
There's lots of support on here too and I'm pretty sure people who have finished their families can also help you out with practical items (myself included).

I'm really sorry that what should have been a joyous and exciting time for you, has turned out to be so incredibly stressful. Sending you lots of love while you sort through what to do next.