Progeny (1998)

ER Dr. Craig Burton sees a shrink due to problems starting the night he had sex with his wife Sherry and was interrupted by bright light and two unaccounted hours passed. She's pregnant after that night despite Craig's low sperm count. Craig's shrink hypnotizes him back to that night. Craig believes that an alien removed him from his wife for two hours and placed him back on her. Something starts moving in Sherry's belly already two months in. Is it just cramps and mood swings or is it something more substantial? At a bar with a colleague, he overhears a TV program talking about alien abduction and another woman having the same experience. Sherry sees the shrink, too, and is hypnotized, revealing an alien abduction. The couple decide to wait for an ultrasound of Sherry before making any decisions.