Inclusion Criteria:  Pregnant women at The Department of Gynaecology and Obstetrics at Aarhus University Hospital or Aalborg University Hospital. Women have to be in 1 of 3 categories: Healthy without pregestational or gestational diabetes, type 2 diabetes treated with insulin or gestational diabetes treated with insulin.  Exclusion Criteria:  Age < 18 years Not able to read and understand danish Previous bariatric surgery Treatment with systemic corticosteroids Other severe chronic diseases such as inflammatory bowel disease, cystic fibrosis and type 1 diabetes