I Didn't Know I Was Pregnant is an American documentary television series on Discovery Fit & Health and TLC. The series debuted on May 26, 2009 on Discovery Fit & Health. Each episode features two or more women who were unaware that they were pregnant until they went into labor.nnGenerally, the subjects' reasons for not recognizing pregnancy include:nn⁕Mistaking the symptoms for some other conditionnn⁕Believing they were infertile, and thus not considering pregnancy a possible cause of symptomsnn⁕Not having any of the "traditional" symptomsnn⁕Being on birth control and having 100% belief in itnn⁕Vaginal bleeding during pregnancy being misinterpreted as a periodnn⁕False negative pregnancy tests