The 33-year-old actress, who is engaged to Muse frontman Matthew Bellamy, told USA Today that timing is everything for their A-list nuptials.
"We have an idea. It's starting to formulate but it's a timing thing."
The mother of two has baby Bingham with her fiancé, as well as 7-year-old son Ryder from her previous marriage to Chris Robinson.
As she and Bellamy balance their careers and parenthood, Hudson said the wedding may have to wait.
"[H]onestly, right now, Matt is touring. Ryder is in school. I'm working."
The actress said she plans to keep her wedding date top secret, explaining:
"I think until the day we get married, the answer is going to be, 'We have no intention right now of getting married'. And then you'll find out we got married."
She and Bellamy have been engaged since April 2011. The singer proposed to Hudson while she was six months pregnant with their son.