Mila, 30, and Ashton, 36, will become parents for the first time later this year, and are "not planning to get married before the baby is born" because "they have a lot going on right now", a source confirmed to E! Online.
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Mila Kunis and Ashton Kutcher are putting their wedding on hold until the baby is born
"They've been focussing on prepping for the baby and the new house," the insider said of the couple, who purchased a new Beverly Hills home last month.
"But they are really happy and in love. They can't wait for their baby to arrive."
The happy couple at a country festival in April
Ashton and Mila's new home is perfect for raising a family. The $10million property has four bedrooms, three bathrooms and offers privacy for the celebrity pair.
It is thought that both will take break from their respective careers to focus on their baby and their impending wedding.
Mila Kunis was glowing at the premiere of her new film this week
For now though, its business as usual. This week, Mila made a solo appearance for the Hollywood premiere of her new film, The Third Person.
The expectant actress looked stunning at the screening,; although she kept her blossoming baby bump under wraps in a flowing black dress, there was no mistaking her pregnancy glow as she posed on the red carpet.