Jillian Harris is pregnant with a baby girl.
The couple are already parents to 21-month-old son Leo.
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"My heart could EXPLODE!!!! Up next.... a baby GIRL!!!!" Harris captioned a photo with Pasutto, Leo and their dog.
Harris also shared the news in a video on YouTube. She and Pasutto changed the lights of their pool to pink during a gathering with their families.
"While I'm excited to see what we're having, I actually don't really care," Harris said in the clip.
Harris had announced her second pregnancy in an Instagram post in April.
"Beyond grateful, excited and FULL of love for this next stage in of our lives!" the star wrote at the time.
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Harris is known for "The Bachelor" Season 13 and "The Bachelorette" Season 5, and presently stars on the HGTV series "Love It or List It Too" with Todd Talbot.
She got engaged to Pasutto in December 2016.