1:56 AM
Kelly Preston is pregnant, the family announced Tuesday.
"It's impossible to keep a secret...especially one as wonderful as this," reads a message on both Travolta and Preston's websites.
"We want to be the first to share this great news with everyone that we are expecting a new addition to our family."
Travolta and Preston, who have been married since 1991, are also parents to 10-year-old daughter Ella Bleu.
Their son, Jett, died in January 2009 at the age of 16 after suffering a seizure.
The Jett Travolta Foundation was established last year to better the educational, medical and environmental situations for children from a variety of disadvantaged backgrounds.
The couple's surprising announcement comes a day before Star magazine is due to hit newsstands with a cover touting the couple's "Miracle Baby."
