according to duhigg, why did target want to advertise to pregnant customers?

According to Charles Duhigg, Target wanted to advertise to pregnant customers because they recognized pregnancy as a key transitional phase in life when consumers' habits and brand loyalties are disrupted. By identifying pregnant women early, especially in their second trimester, Target aimed to be the first retailer where these women established their shopping habits. This was strategically valuable because habits formed during pregnancy tend to reinforce themselves over time. Once pregnant women started shopping at Target for baby items such as diapers and bottles, they were likely to continue buying other household items there, making Target their go-to store for years. Essentially, Target's goal was to capture these customers early to build a long-lasting shopping relationship with them during a lucrative and habit- forming period in their lives.