Carla, 43, who is said to be expecting the baby in October, looked happy and relaxed as she enjoyed a seaside walk in the South of France, showing off her enviably slim legs.
She was later spotted working out in the sea - no doubt determined to keep her supermodel figure throughout her pregnancy.
The baby will be her first with President Sarkozy, although she has a son, Aurélien Enthoven, who was born in 2001 during her relationship with philosophy professor, Raphaël Enthoven.
It was previously rumoured that the Sarkozy's were expecting twins - does that look like a double-bubble bump to you?
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