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pital spokesperson Nadine Bauer.

Given the history of false reports surrounding the Jolie-Pitt twins, OK! is waiting for confirmation from reps for both stars before saying anything definite.

Angelina had checked into the hospital on July 1 in anticipation of the birth.

The babies are (or will be, if the reports are false) the fifth and sixth children for the longtime couple and make big brothers and sisters out of Maddox, 6, Pax, 4, Zahara, 3, and Shiloh, 2.

The actress emphatically "announced" she was pregnant at the Independent Spirit Awards in February, flaunting a very pointy baby bump on the red carpet. After months of keeping silent, Angelina finally confirmed reports she would be having two great expectations on the Today show in May when Kung Fu Panda co-star -- and new dad -- Jack Black let it slip.

"Poor Jack! Immediately when he saw Brad, he apologized," Angelina . "But we both told him very clearly that we had only waited because, as you do with any baby, but especially twins, you wait until all results are in on their health, and that we were past that point and if somebody had asked me directly, I would have said yes. So he didn't do anything but take the heat himself."

Just two weeks later, rumors swirled that the 33-year-old Wanted star had delivered her babies in France, but were later .

Though Brad, 44, and Angelina have been quite vocal about expanding their clan, the Oscar winner says they weren't expecting to multiply so quickly, admitting the dual pregnancy was a "shock." And while parenting six kids may sound difficult to many, the two are up for a challenge and are determined to make it work.