Bundchen, who earned $45 million in the year to 1 May 2012 as the worlds richest supermodel, told TV Globo she is five months pregnant and very happy, outlets reported.
The models fans have speculated that she might be pregnant for months, starting at Mays Met Ball. Last month, a set of photos of Bundchen wearing a bikini on a Costa Rican beach seemed to confirm the rumours.
Bundchen and Brady are parents to a two-year-old son, Benjamin Rein Brady.