The news about when Jolie would be giving birth was let slip by actor Dustin Hoffman, reports The Sun.
However, it was Jolie herself who revealed that she was "certainly thinking" about giving birth in France.
Speaking at a news conference in Cannes, Jolie revealed that the couple's kids were already learning to speak French.
"It's a second language in our home," the BBC quoted her, a saying.
"My children are starting to speak French, it's good for them," she added.
The new additions will take the number of kids in Brangelina's brood to 6.
The couple are already parents to two boys - Maddox and Pax, and two girls - Zahara and Shiloh.