Movie Spoilers

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The Astronaut’s Wife (1999)

Jillian (Charlize Theron) figures out that during the two minutes her husband Spencer (Johnny Depp) was unaccounted for, the alien has taken over his body and that the twins she is carrying are the alien’s. She electrocutes him in hopes of killing it. She destroys the body, but the alien escapes to her body. She (now the alien) then raises the two alien children with her new and unsuspecting astronaut husband.

— Thanks to Xiomara Aryna!