Inclusion Criteria:  Being 18 years or older Being primigravida or multigravida Getting a diagnosis of Gestational Diabetes Mellitus Having a gestational week between 24-28 Having a single fetus Ability to use the Internet (Computer, tablet, smart phone, etc.) Voluntary participation in the research  Exclusion Criteria:  Having a diagnosis of Type 1 and Type 2 Diabetes Mellitus Having another chronic disease Having a visual or hearing impairment Having a psychiatric medical diagnosis Having a diagnosis of risky pregnancy not related to GDM