The glucose tolerance test is done in the 6th-7th month of pregnancy, that is, during the 24th-28th weeks of pregnancy, because it is crucial for both the fetus and the pregnant woman to have the glucose tolerance test during this time, as the fetus is already developed and if it has diabetes it will have adverse effects on the fetus. Diabetes during pregnancy can easily cause huge babies, etc. It can also be very damaging to the pregnant woman herself and can easily cause kidney damage, etc. Therefore, it is important for pregnant women to pay attention to the glucose tolerance test during pregnancy and to get the timing right in order to have a healthy baby. If diabetes is confirmed through the glucose tolerance test, it is best to use insulin treatment under the guidance of a doctor to avoid the adverse consequences of high blood sugar. It is recommended to eat more vegetables and fruits with low sugar content in order to control blood sugar, but you also need to have a diversified diet during pregnancy.