Gisele Bündchen’s baby bump has officially been spotted.The pregnant supermodel, 44, was photographed days after it was first reported that she was expecting her third child, her first with her jujitsu instructor boyfriend Joaquim Valente.Bündchen wore a black wrap dress with her bump on full display, black sunglasses and a nude bag.She wore her hair in a loose braid as she ran errands in Miami.The news comes two years after Bündchen and her ex-husband Tom Brady, 47, finalized their divorce after 13 years of marriage.People reported that the former Victoria Secret runway model and the martial arts teacher, 35, are welcoming a baby, citing a source on Monday....