I looked at the latest Demographic Statistics here this week, which showed that Australia's population increased by 354,600 in the year to September 2014.
Commsec charted the trend in births to dispel the myth that folk have stopped having babies due to cost of living pressures.
In fact, over the past 24 months the total number of births has been at record highs.
Moreover, the greatest number of births continues to take place in the most populous states, which also have the most expensive housing markets.
That said, in other developed countries it has been observed that as wealth increases fertility can decline.
It would therefore not be a surprise to me to see fertility rates tail lower in Sydney and Melbourne from their present levels of ~1.9.