Baby No. 2 on the Way for Melissa Joan Hart
09/27/2007 AT 09:45 PM EDT
The Sabrina the Teenage Witch star is four months along, her rep says.
Hart and her husband Mark Wilkerson, who married in 2003, are already the proud parents of a son, Mason, who is nearly 2.
"I love the faces Mason makes. I could watch him forever," Hart, 31, told PEOPLE shortly after his birth.
Baby No. 2 will be arriving a bit sooner than the actress planned. In an interview with Celebrity Baby Blog, Hart said, "I hope to have a little sibling for Mason sometime around his third birthday, but first I want him to learn how to snowboard – because I feel like that will be a marker of his self control!"
Added Hart: "I adore my baby boy and can't imagine not having him around. He makes everything okay, if I've had a bad day or a good one."
Hart, who's currently shooting a Lifetime movie in Vancouver, will next be seen in a guest appearance on the Oct. 9 episode of Law & Order: Special Victims Unit.
Reporting by ULRICA WIHLBORG
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