The 'Dark Knight Rises' actress and her fiance Adam Shulman reportedly went for dinner with their family and some close friends on Thursday night and the couple arranged the occasion to announce the happy news.

The loved-up pair's news was met with a joyous reaction and the party celebrated late into the evening.

A source told RadarOnline.com: "Not only did both Anne and Adam have their parents at dinner with them, which is unusual, but the amount of enthusiasm and excitement made it clear that they were celebrating some major news, and while everyone else sipped on wine at dinner, Anne didn't drink any alcohol, which is an indication that she could be pregnant."

The ecstatic party went for dinner at the Picholine restaurant on the Upper West Side of Manhattan and Anne was reported to have a visible bump.

The source said: "It looked like there was a bump on her belly.

"Anne and Adam are already engaged, so the only other good news could be a baby on the way!"

The 29-year-old and her actor beau have been together since 2008 and have been engaged since last November.

The couple are yet to set a date for their wedding.