Many of the mothers who get to put their feet up on Mother's Day tomorrow need the break because the number of Kiwi women giving birth aged in their mid-to-late 30s now outnumbering those in their early 20s.
"The trend towards older childbearing continues," said population statistical analyst Anne Howard, of Statistics New Zealand.
"Last year, for the first time in our history, 35-39-year-old women had more babies than women aged 20-24."
Statistics NZ figures showed there were 58,717 live births in New Zealand in 2013. The Auckland region led the way with 21,827 births, followed by the Canterbury and Wellington regions. West Coast (with 385) and Tasman (487) recorded the lowest number of births.
Modern mothers may be busier than ever, but the saying that their work is never done doesn't quite stack up.