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The Indian-American director Mira Nair was surprised after Reese Witherspoon announced her pregnancy while shooting Vanity Fair. Nair had previously asked Witherspoon -as a joke- to get pregnant for her role as "Becky"
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January Jones found out that she was pregnant while filming Mad Men, where she portrayed "Betty Draper." The show's writers decided to make "Betty" gain some weight due to medical conditions!
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It was clear that "Carrie Bradshaw" didn't want to have kids in Sex & the City, that's why the show's writers decided to dress her in big and loose outfits after her baby bump started to grow. The fifth season of the show was slightly shortened so Sarah could give birth to her son!
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Also known as "Claire" in Modern Family, the actress was pregnant with twins while filming the series' pilot. She appeared most of the times hiding behind boxes, laundry baskets, and even behind other characters!
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If we really pay attention to Kate Winslet in Divergent we might notice that she had something in her hands pretty much in most of the scenes. That was because she was five-month pregnant while filming the 2014 movie!
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Courteney Cox found out she was pregnant while shooting Friends. Her story is particularly interesting because at the same time as her real-life pregnancy, her character "Monica" was involved in an infertility storyline with her partner "Chandler" (Matthew Perry)
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Also in Friends Lisa Kudrow became pregnant during season 4. The actress reportedly gave birth to her son the night the series' finale aired, and her pregnancy was included in the show's storyline. Her character "Phoebe" had triplets as a surrogate mother for her younger half-brother
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Homeland star Claire Danes' fans were shocked after she revealed her pregnancy. Danes was in her first-trimester during the filming of the seventh season of the series, and said that she was able to keep the secret from the cast and crew for a while
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Gillian Anderson got pregnant while filming The X-Files and the production decided to give her character "Dana Scully" a very interesting twist. It was decided that "Dana" would be kidnapped and abducted by aliens, explaining her absence in the show!
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Amy Poehler became pregnant while she was filming Parks and Recreation, where she portrayed "Leslie Knope." The series' production decided not to include her pregnancy in the storyline, and instead filmed six new episodes as fast as they could, before Poehler's physical appearance started to change!