Megan Fox is pregnant -- report

Well, we're pretty sure we know who is going to be the hottest mom at all those PTA meetings in five years. Megan Fox is expecting.

Star magazine is reporting the "Transformers" actress and hubby Brian Austin Green just learned the news and, according to a source "are incredibly excited. The source adds, "It's still early, so they are only telling close friends and family members."

The couple have been married since 2010. Fox is already stepmother to Green's 10-year-old son Kassius.

"Megan has become a great stepmom, and Brian knows she'll be wonderful with the baby," the source says.

Calls to Fox's and Green's publicists for comment have not yet been returned.