She all but confirmed rumours she was pregnant during a recent interview.
And although Carla Bruni-Sarkozy insists that her "lips are sealed" an appearance on Tuesday did nothing to counter speculation that she's expecting.
At the engagement, the wife of President Nicolas Sarkozy wore a loose fitting black coat.
Carla, 43, also placed her hands protectively over her stomach.
Meanwhile, French magazine Voici has stated: "We can now be a little more specific about the speculation that the first lady is pregnant. She is expecting twins."
The new arrival would be the couple's first child together.
She also has a nine-year-old son called Aurelien from a previous relationship.
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