Lisa shared the new snap with fans this morning after enjoying a family dinner with Jack last night.
Taking to Twitter, Lisa said: "Giant baby bump appeared overnight. It's only getting bigger from here on out."
Last night (4 March), Jack and Lisa - who are expecting their second child together - were pictured arriving at Craig's restaurant in Los Angeles.
Jack led the way as he held onto Lisa's hand, and she covered her baby bump in a chunky tweed jumper. The couple were joined by Jack's parents, Sharon and Ozzy Osbourne.
Taking to Instagram yesterday, Jack wrote: "I like to wish my awesomely beautiful wife @mrslisao very Happy Birthday! I love you very much."
Jack and Lisa, who married in October 2012, announced their baby joy almost two weeks ago. They shared their happy news by posting a cute photo of their daughter Pearl leaning against Lisa's bump.
The caption read: "Surprise! #round2 #babyinbound."
Lisa added on her Raddest Mum blog: "We are more than halfway through this thing & are very excited to be parents again! Thanks for all the well wishes."
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