Sure, hoping for a collective change of attitudes to pregnant working women is a lot to pin on one woman's baby bump.
But this is not just any pregnancy. This is the hatching of a baby inside the most powerful woman in this country. Most women hope to schedule in a bit of sleep around the baby's breastfeeding. She'll hope to schedule in world leaders.
Within hours of Ardern's announcement, the water cooler talk had turned to the irresponsibility of her decision. How could she take a job as relentless as Prime Minister knowing she was pregnant? How little time will she have for the child? Who's going to pay to cart the child around the country with her?
Settle down. She's capable, young and smart. She's got a partner willing to stay at home and raise the baby. She earns more than enough money to get all the extra help she needs.
Women have had babies in far worse circumstances than a stable relationship where one parent earns more than $400,000 a year and the other is a stay-at-home parent.
This pregnancy is a huge gift to young women in this country. Even if she does nothing else for the rest of her time as Prime Minister, she's already a champion.
From Tuesday, Heather du Plessis-Allan will be hosting Wellington Mornings on Newstalk ZB.