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Instagram
Carrie Underwood
The country star let her pups do the talking when it came to announcing she was pregnant with her first child.
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jessicasimpson.com
Jessica Simpson
In 2014, Simpson announced her pregnancy with eldest daughter Maxwell with this extremely memorable photo of herself dressed up as a "mummy." Get it? Yeah. You get it.
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Instagram
Olivia Wilde
In 2016, Olivia and then-partner Jason Sudeikis' son Otis helped confirm that baby No. 2 was on the way. The former couple welcomed their daughter Daisy later that year.