While eager fans of the Olympic swimmer clamoured for photos of the star's baby girl, Rebecca instead shared the odd snap on Instagram - none of which featured her little one!
However, it looks like the delighted new mum has finally given fans exactly what they've been waiting for and uploaded a truly adorable snap of herself, her husband Harry and their little girl, Summer.
The delighted trio couldn't have looked any cuter as they snuggled in against each other and smiled for the camera this weekend.
Summer, who arrived into her parents' lives in June of this year, looked utterly adorable perched in her mum's arms while wearing a white jumpsuit decorated with an elephant motif.
Leaving no doubt that the 26-year-old sport star is overjoyed by the change in family dynamic since her little one's arrival, Rebecca captioned the shot: "What Sundays are all about #family #love."
Congratulations have poured in for the star since the photo's upload yesterday, with one Instagram follower writing: "Aw congratulations! Hope she'll be a fab swimmer like you!"
This is one of the sweetest family snaps we've seen in a while!
