A former Metro-North Railroad conductor claims she lost her baby after she was forced to wear an electronic ticket machine, according to a lawsuit.

Gina Defrancesco, 35, says the commuter railway fired her for refusing to wear the device on her belt when she returned to work after miscarrying, according to a lawsuit filed last week in Manhattan Supreme Court.

Even before she conceived, Defrancesco worried about the harmful effects of the wireless hand-held device, which is slung on her belt close to her reproductive organs, she says in court papers.

Her OB/GYN told her not to wear the ticket machine, her lawyer said.

Despite telling bosses and providing a note from her doctor, she says that supervisors told her that she would be canned if she did not wear the device.

On May 15, Defrancesco lost the baby.

Metro-North did not respond to a request for comment on the lawsuit.