The Good Looking songstress, 31 – who officially revealed the big news during a music festival in Mexico on Sunday – struck a pose in the reflection of a mirror while joined by friend and model, Georgia May Jagger.
The actress donned a glittering, purple minidress and flashed an excited smile with her stomach on display.
She layered the dazzling look with a fuzzy, pink jacket and also opted for sparkling, gold bottoms for a finishing touch.
Jagger stood close behind Waterhouse as the fashionable pair paused for the quick photo inside what appeared to be a dressing room.
Social media users and celebrities flocked to the comment section to express their excitement and congratulations in regards to the pregnancy confirmation.
Her Daisy Jones & The Six co-stars sent sweet messages, with Riley Keough adding heart-eyed emojis and Camila Morrone also added a slew of emojis.
Dua Lipa penned, ‘Congrats sweetness!!!!!!’ while supermodel Karlie Kloss typed out, ‘Congratulations mama!!’
Cara Delevingne sweetly added, ‘My heart ❤️,’ and Vampire Diaries alum Nina Dobrev joined in by penning, ‘Congratulations,’ followed by a black heart emoji.
Suki also included additional images in the Instagram carousel, such as a close-up selfie to show off her glammed up makeup, which comprised of a layer of mascara to her lashes as well as nude-colored lipstick.
Her blonde locks were parted in the middle, and flowed down past her shoulders in light waves, allowing her bangs to gently fall onto her forehead.
The star also uploaded a photo that had been taken when she was belting out lyrics on the stage.
When she wasn’t performing, Suki had a chance to enjoy downtime during the short trip to Mexico and shared a few fun moments with pal, Georgia.
In one snap, the two friends struck a pose together while standing outside on a street in a quiet neighborhood.
The two also stopped for another fun selfie while covered by a variety of colorful streamers. Lastly, Waterhouse shared an image of Jagger as she posed for the camera while sitting inside a vehicle.
In the caption of the post, Suki penned to her 3.7 million followers, ‘thank you for such a beautiful time in mexico! ❤️.’
One day earlier, Waterhouse confirmed her pregnancy with boyfriend, Robert Pattinson, after first sparking rumors that she was expecting earlier this month.
The beauty gestured to her baby bump and made a sweet quip at the Corona Capital Festival in Mexico City on Sunday in a TikTok clip shared by user @bestsukiw.
The singer – who has been linked to The Batman actor since 2018 – could be seen addressing the audience as she revealed the reasoning behind her choice of dazzling ensemble.
‘I thought I’d wear something sparkly today to distract you from something else I’ve got going on,’ the singer said, while pushing back her fuzzy pink jacket to motion towards her stomach.
However, after loud cheering from the crowd began to die down, she then teased, ‘I’m not sure if it’s working.’
The British-born star first sparked pregnancy speculation with longtime boyfriend, Robert, on a hike earlier this month.
Since the outing, the beauty has been seen on multiple excursions where she showed off her bare belly, fueling rumors that she was expecting her first child with the Twilight alum.
The lovebirds were first romantically linked five years earlier, and have mainly kept their relationship out of the public eye.
Earlier this year in February, the actress opened up about her romance with The Batman actor while talking to The Sunday Times.
She explained to the outlet that the pair try not to spend too much time apart. ‘I had two days off the other day, and it was like, no question I’m going back to see him. Then he’ll come out for a couple of days.’
The beauty then gushed, ‘I’m shocked that I’m so happy with someone for nearly five years.’
‘I’m always incredibly excited when I see his name pop up [on my phone] or even a text, and I think he feels the same about me. We’ve always got so much to say, and I find him hilarious.’
Suki previously dated Bradley Cooper, as well musician Miles Kane and later Star Wars actor Diego Luna from 2016 until 2017.
Pattinson was also linked to Twilight co-star, Kristen Stewart, in the past and was engaged to singer, FKA Twigs, until their split in 2017.
Last month in October, Waterhouse further opened up about dating Pattinson and revealed that she recently moved in with the actor, despite being together since 2018.
While appearing on the Driven Minds: A Type 7 podcast, she explained that dating Robert was ‘special’ due to their relationship occurring after she had taken a ’bout of celibacy.’
‘I’ve been ghosted and broken up with after dating someone for a year, that was pretty bad. But it turned out to be brilliant because I took it like a bout of celibacy.’
Waterhouse also talked about her long-lasting relationship with Pattinson and how she had felt ‘ready’ when it came to dating the star.
During the interview, Suki revealed that she wanted children in the future but added, ‘I don’t think I would have four.’
The pregnancy confirmation comes shortly after Waterhouse dropped out of the upcoming Laneway Festival set for early 2024.
In an official statement, the festival explained that the singer was no longer able to take part in the event in February ‘due to personal reasons.’