My current answer:
When I get a new kitchen. I told my husband when we bought our current house in 2008 that we aren't having kids until we remodel the kitchen. There is no way I would want to deal with being pregnant and going through a remodel, or having an infant/toddler/any other age child while going through a remodel. Especially of a kitchen. Therefore kitchen > baby. Period.
When my mom starts hinting I tell her I don't have a new kitchen yet, and if she'd like to contribute to the fund she's more than welcome to. Considering that I was the only full-time income for 4 years & am still the primary breadwinner, we own two properties (i.e. $$ down payments, upgrades, unexpected repairs, rental issues, mortgages, etc), and are dealing with other things? Shelling out $10-40k on a kitchen is not on our priority list.
Of course, it also helps that my husband and I both have brothers that are older than us & have infants. One is 14 months, one is 3 months. So both sets of parents have grandchildren and are temporarily satisfied
