January 12, 2011 11:07AM EST

Kate Hudson Is Pregnant! She Is Expecting A Baby With Beau Matt Bellamy!

Kate’s son Ryder is going to be a big brother! She’s 14 weeks pregnant with her second child!

The Hollywood baby boom is in full swing! A source confirm Kate Hudson is 14 weeks pregnant with the lead singer of Muse, Matt Bellamy‘s baby! “It was not planned, but they are excited and embracing it,” the source tells the Us Weekly. Kate has been hearing the tick-tock of her biological clock for some time now. “Kate is really happy. She was always excited to have kids again at some point,” an insider confirms to People.

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The 31-year-old actress, who has been dating Matt, 32, for nine months, may not have been trying to get pregnant, but she’s super excited to give her son Ryder, 7, another sibling! Her ex and Ryder’s dad, Chris Robinson, welcomed a baby girl, Cheyenne, in December 2009 with his wife Allison Bridges. “He’ll be excited because it’s something new,” a source tells Us. “He already loves his dad’s daughter.”

Kate could care less whether she has a boy or a girl. “She is happy for Ryder to have a bother or sister,” explains the source. But she does hope that the newest member of the family follows in his or her big brother’s footsteps. “He’s such a genius!” the insider says about the second-grader, who is already multilingual!

And daddy-to-be Matt is madly in love with his California girl girlfriend. “Things are going great at the moment,” he says. “I am very happy. We just have fun together. Kate is great.”

We certainly wish these two parents-to-be the best of luck!