Love hearing the scan and team news!
ch1134 - have you thought about childcare vouchers, if your employer offers them? Your partner can also claim them if his employer is part of a scheme. Your employer takes an amount off your earnings and puts it into a separate childcare account and you don't pay tax on it. It doesn't solve the world but does make childcare a little cheaper as you're not paying quite as much tax on your salary.
My DD goes to a wonderful childminder, I know they're all different but if you find the right one I think it's a great option, especially while they're still babies.
Also, check how the childminder charges for holidays, mine charges half rate if she takes a holiday, or half rate if I take a holiday, but doesn't work on bank holidays so I don't pay for them. I also pay a little extra for meals and soft play activities etc on top of the standard rate so check about the one you're interested in to get a proper idea on final price!
The other thing to remember if you're struggling to break even is that it's not forever - they get 15 hours childcare in term time when they're 3 and then school will take over. My DD will get her free hours in Jan which will be helpful, before I have to pay for childcare for this new baby!