The former Brookside star, 31, announced her happy news earlier this week on Twitter, revealing that she and husband Robbie have called their son Charlie.
She said: "So happy to say Rob and I welcomed a new little man into our lives this morning at 9.37am! BABY CHARLIE. We're both doing great xx."
Charlie's arrival means Jennifer and Robbie have scored a hattrick, as they are already parents to sons Bobby and Harry!
Despite their blissful happiness, the week hasn't however got off to the best of starts. In the early hours of today (1 October), Jennifer tweeted: "One very sick 14 month babba and one brand new baby...............Result zero sleep!! x."
Earlier, she had told followers: "Night shift again! Wow isn't it weird the way ur brain forgets all the hard parts? X."
Oh dear, poor Jen. Massive congratulations though!
Celebrities who have welcomed babies in 2014:
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