Apparently Nicole Kidman hasn't heard about the stork. Kidman's theory on why she got pregnant all of a sudden when she'd been trying unsuccessfully for a long time is that she went swimming in some waterfalls in the Australian
Outback.

Kidman says she and six other women swam in the waters and
they all got pregnant. Kidman tells The Australian Women's Weekly
that "there is something" in the water up there. They're now
calling it "the fertility waters."