And they compute that not by looking at the obvious things, like, she's buying a crib or baby clothes, but things like, she bought more vitamins than she normally had, or she bought a handbag that's big enough to hold diapers.
Y lo calculan no mirando cosas obvias como si compra una cuna o ropa de bebé, sino cosas como si compró más vitaminas de lo normal, o si compró un bolso de mano suficientemente grande como para contener pañales.