The new mom glow suits her. Catherine Giudici shared a pic of her post-baby belly one week after welcoming her first child, son Samuel, with her husband, Sean Lowe.

The 30-year-old reality star, who gave birth on July 2, posted side-by-side shots of herself both pre- and post-birth in a tight black shirt, black leggings and a white patterned kimono.

One Week 😊

A photo posted by Catherine (Giudici) Lowe (@catherinegiudici) on

“One Week,” she captioned the Instagram montage, which shows her already-flatter tummy in the post-baby photo, on Saturday, July 9.

Giudici and Lowe, 32, who met on season 17 of The Bachelor in 2012 and married in a televised wedding special in January 2014, have already begun embracing their new role as parents.

A source exclusively told Us Weekly last week that the happy couple “are so in love with Samuel already and are excited to be a family of three. Catherine and the baby are doing great. They’re both healthy and happy.”

The insider added that the former Bachelor is “really excited to raise a great gentlemen,” noting, “He is so close with his dad and feels so lucky to have a great dad as a role model and wants to be that for his son.”

The duo revealed they were expecting their first child together in December 2015.

Can't get enough of Us? Sign up now for the Us Weekly newsletter packed with the latest celeb news, hot pics and more!