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.

Generally, the subjects' reasons for not recognizing pregnancy include:

⁕Mistaking the symptoms for some other condition

⁕Believing they were infertile, and thus not considering pregnancy a possible cause of symptoms

⁕Not having any of the "traditional" symptoms

⁕Being on birth control and having 100% belief in it

⁕Vaginal bleeding during pregnancy being misinterpreted as a period

⁕False negative pregnancy tests