Melissa Joan Hart and Mark Wilkerson
09/27/2007 AT 09:45 PM EDT
Actress Melissa Joan Hart is pregnant with her second child, PEOPLE has confirmed.
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
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