Data shows [1] educated, empowered women with access to contraceptives have less children overall, and defer having children until later in life, full stop.
I also argue it is a net positive, regardless of the underlying mechanism(s), that the fertility rate is declining across the world considering the unsustainable consumption rate per capita of the first world.
[1] https://ourworldindata.org/fertility-rate#empowerment-of-wom...