Two hyperthetical but possible situations....
You currently own a 2 bed semi in a nice area with the plans for kid(s) within 18 months.
In 3 years from now would you like to be....
a, mortgage free with a possible house extension to take it to 3 bedrooms and other refurbs if bugets allowed.
b, save hard and go for somewhere bigger - c400k, 3/4 bedroom - the likelihood being that would entail saving very hard for 2 years and being lumbered with mortgage payments of double the current payments for another 25 years. You would also benefit from slightly increased living and outdoor space.
I think a is a no brainer but the mrs is dead set on b

You currently own a 2 bed semi in a nice area with the plans for kid(s) within 18 months.
In 3 years from now would you like to be....
a, mortgage free with a possible house extension to take it to 3 bedrooms and other refurbs if bugets allowed.
b, save hard and go for somewhere bigger - c400k, 3/4 bedroom - the likelihood being that would entail saving very hard for 2 years and being lumbered with mortgage payments of double the current payments for another 25 years. You would also benefit from slightly increased living and outdoor space.
I think a is a no brainer but the mrs is dead set on b




or tell her you dont want a 25 year mortgage and that a debt free lifestyle is the better option
