Carla Bruni flaunts her big baby bump!

France's President Nicolas Sarkozy (L) and his wife Carla Bruni-Sarkozy hold hands as they walk down the stairs in the gardens of the Elysee Palace in Paris during the the 28th edition of France's Day of Patrimony on September 17, 2011. France opens the doors of its state buildings to the public throughout the count on Heritage Days. (Reuters/Jacques Brinon)

French President Nicolas Sarkozy and first Lady Carla Bruni-Sarkozy walk in the gardens of the Elysee Palace in Paris, on September 17, 2011, during the 28th edition of France's Day of Patrimony. For two days a year in Paris and the rest of France, thousands of monuments, government buildings, and privately owned sites of interest open their doors to give the public free reign to areas that are generally not accessible. (AFP/Jacques Brinon)

France's First Lady Carla Bruni-Sarkozy looks at visitors who wait in line in the gardens of the Elysee Palace in Paris during 28th edition of National Heritage Days on September 17, 2011.  (Reuters/Jacques Brinon)

Nicolas Sarkozy (L) and his wife Carla Bruni-Sarkozy walk in the gardens of the Elysee Palace in Paris during 28th edition of National Heritage Days on September 17, 2011.  (Reuters/Jacques Brinon)

France's First Lady Carla Bruni-Sarkozy waves to visitors who wait in line in the gardens of the Elysee Palace in Paris during 28th edition of National Heritage Days on September 17, 2011. (Reuters/Jacques Brinon)

Carla Bruni-Sarkozy, the wife of French President Nicolas Sarkozy walks in the gardens of the Elysee Palace in Paris during 28th edition of France's Day of Patrimony, Saturday, Sept. 17, 2011. France opens the doors of its state buildings as part of its Day of Patrimony when usually these buildings would be forbidden to the public. (AP/Jacques Brinon)

Nicolas Sarkozy and his wife Carla Bruni-Sarkozy hold hands as the walk in the gardens of the Elysee Palace in Paris during 28th edition of National Heritage Days on September 17, 2011. (AP/Jacques Brinon)

France's first lady Carla Bruni-Sarkozy walks in the gardens of the Elysee Palace in Paris during France's annual Day of Patrimony on September 17, 2011.  (AP/Jacques Brinon)

France's President Nicolas Sarkozy (L) and his wife Carla Bruni-Sarkozy hold hands as the walk in the gardens of the Elysee Palace in Paris during 28th edition of National Heritage Days September 17, 2011. France opens the doors of its state buildings to the public throughout the count on Heritage Days.  (Reuters/Jacques Brinon)