Kate Hudson Is Pregnant!

Credit: INF

Owen Wilson is expecting a little one -- and now his ex is, too!

A source confirms exclusively in the new Us Weekly, out Wednesday, that Kate Hudson, 31, is 14 weeks pregnant with boyfriend Matthew Bellamy's baby.

"It was not planned, but they are excited and embracing it," the source reveals to Us.

The insider adds that the actress, who has been dating the Muse frontman, 32, for nine months, is stoked for her 7-year-old son Ryder (with ex-husband Chris Robinson, 44) to have a little playmate.

"She is happy for Ryder to finally have a brother or sister," says the source.

To find out more about Hudson's second pregnancy -- including if the twosome are planning to tie the knot -- pick up the new issue of Us Weekly, on stands Wednesday!