The 37-year-old actress is expecting her third child and she admits finding ways to disguise the fact she's pregnant while shooting her new TV series has started to become very difficult, reported InStyle magazine.
"We're working really hard to try to hide it, and it's a challenge, because every day my body changes a little bit more," she said.
"We started out with really high hopes of, like, fitted, pencil skirts, and those really great Victoria Beckham dresses, and that became impossible pretty quickly.
The baby will be Heigl and husband Josh Kelley's first biological child. They are already parents to two adopted daughters, Naleigh, seven, and Adelaide, four. She recently revealed the pair is expecting a boy.
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