LOS ANGELES (CNS) – McDonald’s is being sued by a longtime former cook who alleges she was fired from a Northridge location for getting pregnant, but was told by her supervisors that she was losing her job because of a problem with her Social Security card.

Monica Corona filed the lawsuit in Los Angeles Superior Court, alleging interference with leave and unlawful discharge in violation of the Family and Medical Leave Act. She seeks unspecified damages.

A McDonald’s representative did not immediately reply to a request for comment.

According to the complaint, Corona began working for McDonald’s in October 1995. In October 2011, she suspected she was pregnant when she began bleeding profusely, and doctors at a medical clinic confirmed that she was expecting and said her pregnancy was of a high-risk nature, her suit states.

Corona told her bosses at McDonald’s about her condition and provided documentation, but one of the supervisors merely shrugged, according to the lawsuit.

Corona says she began bleeding again a month later and checked into a hospital. Her bosses criticized her for not finding someone else to cover her at work, according to her complaint.

Corona took two weeks off after being released from the hospital and returned to work in December 2011. But she again began bleeding at work and was taken to a hospital by a colleague, the suit states.

Corona says she remained in the hospital for two days, then returned to work with a list of doctor-ordered work restrictions that she showed to one of her bosses, who took the information “without saying a word to plaintiff.”

Corona was fired the same month after one of her supervisors told her that her Social Security number was “no good,” according to her suit. She alleges the Social Security card was raised as a false issue and that the real reason she was fired was because she became pregnant and took time off for medical leave.