Pregnant actress Maggie Gyllenhaal is all smiles as she is seen out for a walk with her mother Naomi Gyllenhaal in New York City, NY on March 23, 2012. Credit: Teach/FameFlynet Pictures

Peter Sarsgaard will remain the only man of the house when pregnant wife Maggie Gyllenhaal gives birth to their second child later this year -- Gyllenhaal, 34, is having another girl, she revealed to USA Today.

The Brooklyn-based couple's daughter-to-be joins big sister Ramona, 5.

"I'm so pregnant!" the Hysteria actress marveled. "This is a great, loose black outfit -- I had to take my shoes off."

Like many expectant stars, the Oscar nominee waited until her second trimester to announce the happy news, and struggled to keep it under wraps while hitting red carpet events and going about her life in Brooklyn with Ramona and Sargaard, 41.

"I find it difficult to pretend you're not pregnant, which I had to do," the Crazy Heart star admitted. "I didn't let anyone know until three and a half months this time. I went to film festivals. I'm throwing up in the bathroom and having to keep pretzels in my purse, and having to fit into dresses."

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After seven years together, the Lovelace actor wed Gyllenhaal (older sister to fellow A-lister Jake Gyllenhaal, 31) at a chapel in Brindisi, Italy in May 2009.