The model wife: How Carla fell in love with a president and became his greatest asset
The only thing missing was a child of their own. But then in May 2010, rumours started to circulate Carla was expecting after she appeared fuller around the middle on a string of public appearances.
In the past, she would always deny pregnancy rumours, saying: "I wish."
But this time around she declined to answer questions on the subject.
"I am remaining tight-lipped about that to protect something and to protect all the work that my husband does," she said.
"I would really like to talk about it, but then it would take over everything else."