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Twins, a husband, a football team, singing, acting. Jennifer Lopez has a lot on her plate, but the multi-hyphenate is ready to pile on more. She tells Extra, “I would love to have more kids. I don’t know if we will. I don’t know if that’s in the cards for us. But we’ll see.”

Jennifer revealed that she loved staying home with her kids, but was ready to get back to work. She brought little Max and Emme to The Back-Up Plan set nearly every day. “They’ve been with me almost every day on the set. I don’t think they realize what I do. Once in awhile, they look at the monitor and go, ‘Mama.’ They’re just starting to talk.”

Lopez plays a woman who is artificially inseminated on the same day she meets Mr. Right, and sports a fake belly bump for the film. “A bunch of us who have babies, we’re like, ‘It would be great when you are pregnant…you could take it off five times during the pregnancy, only for a half hour. Then you have to put it back on.’ That would be awesome. It would be perfect. But you can’t.”

Wow. I feel like I’ve learned so much from Jennifer today. She’s such a treasure.

Gallery Info: Jennifer Lopez, with Alex O’Loughlin, pushes a stroller with twin babies on the set of her new film The Back-Up Plan