My fiance earns about £900 a month (approx. $1800) so he's not on a high wage, but we also receive working tax credits & family tax credits (money we get from the government for earning less than a certain amount per year) which is about £280/$560 a month. We pay a lot of bills.. water, electricity, gas, phone, internet, council tax, car insurance, home insurance, tv license.. (that's all I can think of right now but there's probably more) as well as £450/$900 a month for rent. Oh & petrol prices are stupidly high right now so it costs at least £50/$100 a week to run my car.
We don't even have a very big house, it's just a 2 bedroom terraced house & it's not in the nicest area. Houses are ridiculously expensive over here.. this one was on the market for £105,000 before we moved in. We won't be able to afford to buy a house for years at this rate, but renting isn't too bad.
Anyway, we manage to provide everything Jenny needs as well as some "luxuries" for ourselves. Jonny gets paid weekly, which does help.. we constantly have money going into our account (as well as coming out!). It's become easier since Jenny's eaten "proper" food.. no need to buy special baby food or anything. I received vouchers for formula milk when Jenny drank that, so that wasn't a problem. We buy nappies in bulk so it's cheaper that way. We're lucky in that we don't have to pay for medical insurance over here.. & we all qualify for free prescriptions because of the benefits we receive (& the fact that Jenny's under 16).
Sorry this is so long.. I didn't mean to go on like that.