For her pregnancy announcement on Instagram, the actress donned a simple and romantic off-the-shoulder midi dress by Sleeper.
"Me…and my two favorite guys," she captioned photos of herself cradling her baby bump and smiling alongside Garrett Hedlund, revealing the couple were expecting a boy.
The Scream Queens star has favored the baby doll silhouette during her pregnancy. During a break from interviews to promote her Netflix movie Holidate, Roberts snapped a mirror selfie of her bubblegum pink polka dot mini-dress by Batsheva and sky-high black Mary Jane platform shows by Miu Miu.
"baby doll dress has a whole new meaning," she wrote.
For a day of running errands in Los Angeles, Roberts rocked another baby doll dress, this floral one adorned with an on-trend peter pan collar and flats.
Roberts chose a patterned Tory Burch maxi dress for her Oct. 3 baby shower. The stylish mom-to-be paired the smocked piece with white booties at the outdoor garden party.
In addition to her and Hedlund's loved ones, Kristen Stewart, Camila Morrone and more were also in attendance for event, which a source described to E! News as a "casual get-together with a lot of laughter."
Another day, another floral dress for Roberts, who snapped a photo of her pink midi for her Instagram Stories. She finished off the look with red Mulberry sunnies and Dior flats.
The 29-year-old showed off her growing baby bump in a floral-patterned one-piece swimsuit by J.Crew and accessorized her summer style with her trusty red Mulberry sunglasses for her Labor Day look.
For a sweet ensemble,the Bellatrist book club co-founder paired chic tortoise shell sunglasses and Zoe Lev jewelry with her Doen gingham dress. But the ultimate accessory was her adorable decorated @ibakemistakes cake.
Florals? For maternity wear? Perfection. The Nerve actress went to her go-to piece—a flowery smocked maxi-dress—for an Oct. 2 Instagram post.