I’ll repeat the question a PP posed, have you ever, at any time, lived away from your parents? If not, I think you seriously need to look at the actual costs of what that would mean, not assume that what you are paying now is an accurate reflection of market costs on your own or with a partner, who you don’t seem very sure about.
As for your expectation of what rent will cover, hmmm. Here’s what me and my partner have to cover each month, with no children and both working full time, we save a little, but not much, enough to pay for a bit of private dental treatment this year because we couldn’t get an NHS dentist, that’s been our big ‘luxury’ lol, no holidays away etc.
£700 pcm rent for a studio flat, SE England yes, but not uncommon, so no separate bedroom, never mind two – for a one bed I’d expect to pay £850 minimum and a two bed would be maybe £1400.
£50 electric.
£130 council tax.
£30 water.
£20 contents insurance.
Food, travel, clothing etc on top of that.
We don’t go out for meals or to bars.
Look at the advertised costs for rentals in your area, that will give a much better idea of what to expect. Council website for CT amounts. For your own sake wait to have a family, things are about to get A LOT harder under Universal Credit, you watch in the coming year and then think about everything again. You will NOT get a council house in the current climate. The myths about having a baby and immediately getting a house are just that, out of date myths, you’d end up in a hostel somewhere without even a cooker.
And if you don’t like that last paragraph, don’t vote Tory. If you did, this is your fault.