She also wore a loose fitting outfit while visiting "Jimmy Kimmel Live" on Monday.
A source told Usmagazine.com: "Zoe is about three months pregnant. But she will only announce the news when she's ready."
Saldana, 36, married Italian artist Marco Perego last year.
Another insider told the magazine, "Zoe has always wanted a big family.....
She let the picture speak for itself. Only happy couples play with their daughters, right?
One user commented: "No matter what people say about your marriage break up. I will always support you. LOVE U B."
Rumors have been circulating that the couple have been getting marriage counseling during their joint "On The Road" tour, but it hasn't worked. The stars, who have both re...