Am I being selfish?

So there was this recent article in Shine: and it was discussing that 70% of women over 55 were uncomfortable with the idea of a woman in her 40s having babies - and it is "selfish" to wait that long.
​I'm 37. And just started dating someone and we are discussing babies - hence Glow - but up till now I simply was not at the right place. I just don't feel that I am being selfish waiting this long... 
​Does anyone feel this way?