Gisele Bündchen flaunted her baby bump in her first Instagram post for the Lotus House Gala since pregnancy news. In the post, Bündchen shared pictures and videos from the charity event and posted publicly about her first pregnancy with boyfriend Joaquim Valente.

Pregnant Gisele Bündchen debuted her baby bump in style. While attending the Lotus House Gala on Saturday, November 9, Bündchen, 44, wore a fitted black, halter-neck gown that showcased her growing belly.

Gisele Bündchen, who is expecting her third child with boyfriend Joaquim Valente, is “excited to embrace this new chapter openly," a source exclusively tells PEOPLE.

Gisele Bündchen is about to be a mom of three, and sources have confirmed that she'll be embracing "this new chapter openly."

She shared photos from the Lotus House Gala, marking her first Instagram post since it was announced that she is expecting a baby with boyfriend Joaquim Valente.

Gisele Bündchen, who is pregnant with her third baby and first with boyfriend Joaquim Valente, stepped out for a charity gala in Miami.

Gisele Bündchen is already nailing her pregnancy style. On Wednesday, Nov. 13, the pregnant supermodel, 44, shared her first post on Instagram since announcing she is expecting her third baby, her first with boyfriend Joaquim Valente.