Single White Female star Jennifer Jason Leigh and her director husband Noah Baumbach are expecting their first child together, according to U.S. reports.

The couple, who wed in 2005, has been trying to start a family for more than a year.

A source tells the National Enquirer, "Having children is something they have wanted for some time. They are overjoyed with the news.

"Jennifer wanted to play it safe and not tell anyone until she was past the three-month mark. But now that she has reached that stage, she has been telling some of those close to her.

"Noah and Jennifer are so in love - and they're going to make great parents."

The baby is due in March.