Giovanna took to her Instagram account to share the adorable snap of husband Tom holding both of their children sitting on the sofa at their family home in London.
The 31-year-old mum captioned the photograph; 'So much love for these three! XXX'
The photograph comes only 24 hours after the Fletcher family released the next video in their YouTube series, entitled 'Bump to Buddy'.
The two-minute 48-second clip documents Giovanna's pregnancy from the first scan to the arrival of the couple's second boy, all in a clever time-lapse format.
It opens with the author holding a board reading 'The Fletchers, 3 months', and then proudly holding up the pictures of an early scan. She then stands next to a cot in the family nursery, and time starts to pass.
The couple's eldest son, Buzz Michaelangelo, also stars in the film, hanging out with his mum and dad as they wait for the appearance of his little brother.
As the days and weeks go by, Giovanna's bump grows bigger and bigger, with events like Halloween passing (with cute family costumes, naturally).
Towards the end, she waves goodbye to her two existing boys, and comes back with the new addition, who appears to be just a day or two old at the time of filming.
And as if that wasn't enough, we're then treated to a gorgeous black and white photo of little Buddy, introducing himself to the world with a big yawn - aww!
Before you click play and watch the video for yourself, you should know that you'll want to watch it with sound, as Tom has recorded a super sweet soundtrack to accompany it, all about bringing a new human into the world.
The Fletcher's are no strangers to using videos to share exciting family news - back in September, they made a clip called 'Player 2' to confirm that they were expecting.
We've got our fingers crossed that they'll to continue to vlog their adventures so we can see more of Buzz and little Buddy as they grow up.
Congratulations on baby number two, Fletcher family!