Maggie Gyllenhaal admits that she found it "difficult" to keep her pregnancy a secret.
The 34-year-old actress announced last year that she and her husband Peter Sarsgaard were expecting their second child together.
Maggie kept the news clandestine for a while before coming clean about being pregnant.
The star believes that life in the public eye was particularly aggravating at that time.
"I find it difficult to pretend you're not pregnant, which I had to do," Maggie revealed to USA Today. "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."
Maggie is more than comfortable with her pregnancy now that the world is aware of her condition.
"I'm so pregnant," Maggie gushed. "This is a great, loose, black outfit [I'm wearing] -- I had to take my shoes off."
Maggie and Peter have decided to keep the exact due date to themselves.
The couple don't want to attract too much attention.
"I hope [the media doesn't] make an issue of it this time," Maggie said. "I have to think about that stuff."
Maggie will be delivering her new baby sometime this spring.
She and Peter have been married for nearly three years and have five-year-old daughter Ramona together.