Sohn is 11 weeks pregnant and is expected to give a birth to a child around February next year, said the agency, H8 Co.
The couple got married in September 2009 and have a son, born in February 2010, together.
Sohn was named second runner-up at the Miss Korea pageant in 2000. Her husband, Kwon, stars in SBS’ new drama series “Temptation.” Its second episode aired on Tuesday.