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(TMZ) - Mila Kunis and Ashton Kutcher just wrapped up their newest production - in diapers - Mila has given birth to a baby girl ... TMZ has learned.

Sources close to Mila's womb tell TMZ that Mila delivered Tuesday night at Cedars-Sinai - the hospital of choice for many celebrities. 

According to TMZ, they arrived at the hospital Tuesday around 6 A.M. ... and were taken right to a delivery room.

They came by themselves - no entourage, no family.

Sources tell TMZ Mila delivered right on schedule ... and delivered right around the Jewish New Year.

Mazel Tov!

Photo: Getty Images