Gisele Bundchen Pregnancy Rumor Pictures

Gisele Bundchen was spotted leaving the Copacabana Palace Hotel in Rio de Janeiro today. She was heading to an event for the Green Nation Fest at Quinta da Boa Vista public park. Gisele helped plant the first of thousands of new trees that will grow in a degraded region in Brazil and gave a speech, saying, "any citizen can do their part." Gisele's public appearances will continue tonight, when she'll participate in the ceremony for the UN environmental award, Champions of the Earth.

Gisele brought her son, Benjamin, to her native country after spending the last few weeks in Boston with Tom Brady. Gisele, Tom, and Benjamin hit the park on Friday before Gisele took off for Brazil. The Brady-Bundchen family might be expanding soon, if rumors that Gisele is pregnant with her second child are true.