It turns out that they have the purchase history for hundreds of thousands of customers and they compute what they call a pregnancy score, which is not just whether or not a woman's pregnant, but what her due date is.
Ternyata Target memiliki sejarah belanja ratusan ribu pelanggannya dan mereka menghitung skor kehamilan, bukan hanya apakah hamil tidaknya seorang wanita tapi juga kapan ia melahirkan.