# Gestational Diabetes in the third trimester

Source: https://www.pregnancypowerhour.com/trimester-conditions/gestational-diabetes-in-third-trimester
Last updated: 2026-07-15

> In the third trimester, managing gestational diabetes often involves intensified monitoring, including non-stress tests, to ensure both your well-being and your baby's health.

Gestational diabetes (GD), often diagnosed in the second trimester, becomes a key focus for management and monitoring as you move through your third trimester. While the initial diagnosis might have been a surprise, this window is about feeling calm, clear, and confident in your ongoing care.

## Why it shows up this trimester

By the third trimester, the hormones produced by your placenta are at their peak. These hormones are essential for supporting your baby's growth, but they also increase insulin resistance in your body. This means your pancreas has to work even harder to produce enough insulin to keep your blood sugar levels balanced. For some, this resistance can become more pronounced as pregnancy progresses, making consistent management crucial to prevent complications for both you and your baby.

## What it tends to feel like now

Living with gestational diabetes in the third trimester can bring a unique set of feelings. You might be accustomed to monitoring your blood sugar, adjusting your diet, and incorporating movement, but the routine can sometimes feel like a lot to manage. There might be an added layer of anticipation or even some anxiety about how GD might influence your birth experience. It's common to feel a bit more fatigued, and the constant focus on numbers can be emotionally taxing. Remember, these feelings are valid, and support is available.

## What helps in this window

Maintaining stable blood sugar is paramount in the third trimester. One option might be to focus on consistent, balanced meals and snacks, prioritizing whole foods that support steady energy. Gentle, regular movement, like a daily walk or prenatal yoga, can also be a wonderful way to help your body use insulin more effectively. Many parents find that stress management techniques, such as deep breathing exercises or mindfulness, can also play a role in blood sugar regulation. Preparing a list of questions for your appointments can help you feel more informed and in control of your decisions.

## Working with your care team

Your care team will likely increase your monitoring in the third trimester. This often includes more frequent prenatal appointments and specialized tests like non-stress tests (NSTs) or biophysical profiles (BPPs). These tests provide evidence-based insights into your baby's well-being and help your provider make informed decisions about your care. This is also a time to have open conversations about your birth preferences and how gestational diabetes might factor into those plans. You get to decide what feels right for you, and your provider is your best resource for your specific situation. Collaborative discussions can help you feel empowered and ready for birth.