We're thrilled for the former Saturdays singer and her husband Marvin Humes.
Rochelle and former JLS singer, Marvin, are already parents to little Alaia-Mai who will be four in May.
A friend of the couple told The Sun, "They’re delighted. Everything went really well and they can’t wait to get home."
Since the news broke, it has emerged that Rochelle and Marvin have chosen to the name Valentina Raine for their little bundle of joy.
Looks like Rochelle will have her hands full with a toddler and a new baby!
She can always ask her bandmate Una Healy for parenting advice, as Una is also a proud mum-of-two.