Watch: Gisele Bündchen Celebrates Her, Joaquim Valente's Baby Turning One With Sweet PhotosGisele Bündchen is focused on fitness. Specifically, core-strengthening workouts after giving birth to her and husband Joaquim Valente's baby boy early last year. "I really feel these exercises have been amazing," the supermodel-who also shares kids Benjamin, 16, and Vivian, 13, with ex Tom Brady-said in a Feb. 23 Instagram video. "They really have helped me gain my core strength back after my third pregnancy. I wish I knew them before, because I didn't do them in my other pregnancies.