Gisele Bundchen conceals her baby bump in slinky black gown - despite being several months pregnant

Gisele Bündchen skillfully hid her blossoming baby bump in a series of new photos, taken at the 20th Anniversary Gala for Lotus House Women's Shelter last week.

Despite reportedly being five or six months along with her third child, the model, 44, managed to mostly conceal her stomach in her first Instagram post since news broke last month that she and her boyfriend Joaquim Valente, 37, are expecting their first baby together.

In her post, uploaded on Wednesday morning, the Vogue cover girl can be seen smiling as she stood next to two other women at the gala in Miami, Florida.

For the occasion, she wore a slinky black gown with a halter neckline and low back, a delicate pair of gold hoop earrings and black stiletto heels.

While on stage, the Brazilian beauty stood slightly behind a podium, another clever move to obscure her bump.

In a video, however, which Bündchen included in the slideshow, the best-selling cookbook author's visibly pregnant belly was on full display as she turned to the side to give on speaker a hug.

Other photos showed the mother-of-three, who was previously married to NFL star Tom Brady for 13 years, volunteering for Lotus House.

Her volunteer work seemed to include preparing and passing out food to those in need at a cafeteria.

'It was an honor to attend the Lotus House Gala celebrating their 20th anniversary as the largest shelter for women and children in America,' Bündchen captioned the post. 'I feel truly blessed to support the visionary Constance Collins and her incredible team, whose unwavering commitment has transformed countless lives.'

She continued: 'With their latest achievement—uniting over 300 women's shelters nationwide through the National Women's Shelter Network—they're taking a bold step toward eradicating homelessness.'

In addition to her baby on the way, Bündchen shares son Benjamin, 14, and daughter Vivian, 11, with Brady, 47.

She currently lives in her $11 million Miami mansion, where's she's planning to have a home birth , with her kids and Joaquim.

Earlier this year in July, renovations on the lavish home in Florida were completed — after she purchased the abode in 2022.

The two-story house — which is in close proximity to her ex Brady — is located on exclusive Indian Creek Island, and has five bedrooms as well as seven bathrooms.

During the time of the renovations, Bundchen notably spent time at her $9.1 million Miami ranch — which she bought in 2023.

In late October, People confirmed that she and her current partner, who she began dating in June 2023, are expecting.

A source told the outlet that she is 'embracing this new chapter.'

A source also told Us Weekly late last month that both Benjamin and Vivian 'really like' Joaquim and added he has been 'living at [Bundchen's] house in Miami for while.'

Gisele and Tom announced their split and finalized their divorce in October 2022 after 13 years of marriage.

Last month a source told DailyMail.com : 'Gisele and Joaquim were not planning to have a child together. This was unexpected. Joaquim has always wanted a family, so she is happy to be able to give this to him.'

'She knew that he would be a great father when her kids started taking classes with him. He is patient, playful and so understanding,' the insider stated.

Both Benjamin and Vivian are 'absolutely thrilled' over the big news, the source also shared.

Joaquim has been a huge part of both of their lives since 2021 when she started including Jiu-Jitsu as part of their homeschooling.'

'They love him and look to him as a father figure. They are starting a family of their own now and a wedding is going to happen in the future,' the source continued.