When I had dd dh and I earned similar salaries - I was on 20k, he was on 23k.
I lost my job when I was 7 months pregnant, but hadn't been there long enough to qualify for redundancy pay. I did get 3 months notice pay, and then when I had her I didn't want to go back to work so we made the following cuts:
One car between us as DH gets a work van
Bought a new build house instead of our old draughty Victorian one. As it is so energy efficient our bills are now less than half
I walk as much as possible
I work part time, at weekends, so dh can cover the childcare. When he can't as he has two jobs Dm or Mil will usually help out.
Meal plans, and I shop in Aldi and the local market for meat and veg.
No foreign holidays, this year will be out first in 3 years, and we have saved like mad for it. We bought a tent instead.
I am an expert sale shopper, and rarely pay full price for anything.
Neither of us have a social life, dh works thurs - Sunday evenings anyway, so no great loss really.