Why it shows up this trimester
Around the second trimester, your body is undergoing significant hormonal shifts to support your growing baby. Hormones like human placental lactogen (hPL), progesterone, and estrogen are rising, and while essential for pregnancy, they can also make your cells more resistant to insulin. Insulin is the hormone that helps glucose (sugar) from your food enter your cells for energy. When your body becomes more insulin resistant, your pancreas has to work harder to produce enough insulin to keep your blood sugar levels balanced. For some, the pancreas can't keep up, leading to higher blood sugar levels, which is what we call gestational diabetes.
This is why the screening for gestational diabetes usually happens between weeks 24 and 28. It's the window when these hormonal changes are often most pronounced, making it the most accurate time to assess how your body is managing glucose.
What it tends to feel like now
One of the challenging aspects of gestational diabetes is that it often doesn't present with noticeable symptoms. Many individuals feel perfectly fine, which is why screening is such an important part of your prenatal care. However, if blood sugar levels are significantly elevated, some people might experience symptoms that can also be common in pregnancy, such as increased thirst, more frequent urination, or fatigue. It's always helpful to mention any new or persistent symptoms to your care provider, even if they seem minor.
