Wilmer Valderrama and fiancee Amanda Pacheco announced their pregnancy on...

Wilmer Valderrama and fiancee Amanda Pacheco announced their pregnancy on Monday. Credit: Getty Images for Pizza Hut / Presley Ann

"NCIS" and former "That '70s Show" star Wilmer Valderrama is expecting his first child with fiancee Amanda Pacheco.

Writing in quote marks, Valderrama, 40, posted " 'It's just us 3 now' " on Instagram Monday, with two photos of the couple against a highly stylized background and Pacheco very visibly pregnant. The wording echoes that of Valderrama's New Year's Day engagement post reading, "It's just us now."

Pacheco, a San Diego-born model and certified scuba divemaster, wrote similarly on Instagram Monday, "#itsjustus3now."

Among those posting congratulations in Valderrama's Instagram comments were actresses Alanna Masterson, Mandy Moore and Francia Raisa, and singer Joe Jonas. Valderrama previously had been in a relationship with singer Demi Lovato from about 2011 to 2016.

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