Gestational diabetes (in pregnancy)
During pregnancy, some women have such high levels of blood glucose their body is unable to produce enough insulin to absorb it all. This is known as gestational diabetes and affects around 5% of pregnant women.
Pregnancy can also make existing type 1 diabetes worse. Gestational diabetes can increase the risk of health problems developing in an unborn baby, so it is important to keep your blood glucose levels under control.
In most cases, gestational diabetes develops during the second trimester of pregnancy (weeks 14-26) and disappears after the baby is born. However, women who have gestational diabetes are at increased risk (30%) of developing type 2 diabetes later in life (compared to a 10% risk for the general population).
Read more about gestational diabetes.