Medically reviewed by the Obstetrics & Gynaecology team at Momstory, Pune. Last updated: September 2026.
Somewhere around the sixth or seventh month of pregnancy, most expecting mothers are handed a small bottle of glucose solution and asked to sit around for a couple of hours for blood draws. It’s a routine part of antenatal care, but it catches a lot of women off guard when the result comes back positive for gestational diabetes, especially if they’ve never had a blood sugar issue in their life.
Gestational diabetes is common, manageable, and in the vast majority of cases, doesn’t stop you from having a healthy pregnancy and delivery. But it does need consistent attention. Here’s what it actually is, how it’s diagnosed, and what changes to your diet make the biggest difference.
What Is Gestational Diabetes?
Gestational diabetes (GDM) is high blood sugar that develops during pregnancy in women who didn’t have diabetes before conceiving. It typically shows up around 24–28 weeks, once pregnancy hormones start interfering with how your body uses insulin. In most cases, blood sugar returns to normal after delivery, but it’s a condition that needs proper management during pregnancy, and it does raise your future risk of type 2 diabetes, which is worth keeping in mind long after delivery.
Why It Matters: The Risks If Left Unmanaged
Left unmanaged, gestational diabetes can lead to a baby growing larger than average (macrosomia), which can complicate delivery, as well as a higher chance of preterm birth, low blood sugar in the newborn right after delivery, and an increased risk of preeclampsia in the mother. This is exactly why every pregnancy hospital in Pune screens for it as a standard part of antenatal care, rather than waiting for symptoms to show up.
Symptoms: Why You Might Not Notice Anything at All
Here’s the part that surprises most patients, gestational diabetes very often causes no noticeable symptoms. This is precisely why the screening test is done for essentially every pregnant woman, rather than only those who “feel off.” When symptoms do appear, they tend to be subtle and easy to mistake for normal pregnancy discomfort:
- Increased thirst
- Frequent urination (more than the usual pregnancy-related increase)
- Fatigue beyond what feels typical
- Blurred vision
- Frequent infections, such as urinary tract infections
Because these overlap so heavily with ordinary pregnancy symptoms, don’t rely on how you feel to judge your risk, the screening test is what actually tells you, not your symptoms.
How Gestational Diabetes Is Diagnosed
Most gynecologists in Pune follow one of two approaches to screening, and it’s worth understanding both since you may hear either mentioned:
The one-step test (commonly used in India): You’re given a 75g glucose drink, and blood sugar is checked at fasting, then at 1 hour, and again at 2 hours. A diagnosis of gestational diabetes is made if even one of these three readings comes back above the threshold your doctor is working with.
The two-step test: A smaller 50g glucose drink is given first, with blood sugar checked after 1 hour. If that result is high, it’s followed up with a longer 100g, 3-hour test to confirm the diagnosis.
Many hospitals in India also use a simplified version, the DIPSI method, where a 75g glucose drink is given regardless of whether you’ve fasted, with a single blood sugar reading at 2 hours. Your pregnancy specialist in Pune will let you know which protocol your hospital follows and what your specific numbers mean, since exact cut-offs vary slightly between guidelines.
Screening is usually done between 24 and 28 weeks for most women, though your doctor may test earlier if you have risk factors like a higher BMI, a family history of diabetes, a previous pregnancy with GDM, or PCOS.
Diet Management: What Actually Helps
If you’ve been diagnosed with gestational diabetes, diet is usually the first line of management, and for many women, it’s enough on its own to keep blood sugar in a healthy range without needing medication. The general principles your doctor or dietitian will likely guide you on include:
- Choose complex carbohydrates over refined ones. Whole grains, oats, and whole-wheat rotis digest more slowly than white rice, refined flour (maida), or sugary snacks, which helps prevent sharp blood sugar spikes.
- Pair carbohydrates with protein and fibre. Eating carbs alongside dal, paneer, curd, or vegetables slows down sugar absorption compared to eating them alone.
- Eat smaller, more frequent meals. Instead of three large meals, many women manage better with 5–6 smaller meals and snacks spread through the day, which helps avoid both blood sugar spikes and dips.
- Be mindful of fruit portions and timing. Fruit is healthy, but it still raises blood sugar, moderate portions, and pairing fruit with a protein source, tend to work better than large servings on their own.
- Cut back on sugary drinks and desserts. This includes fruit juices, which spike blood sugar faster than whole fruit due to the lack of fibre.
- Stay consistent with meal timing. Skipping meals and then eating a large portion later tends to cause bigger swings than eating at regular intervals.
- Stay active, if your doctor approves it. A short walk after meals, or any pregnancy-safe activity your doctor clears you for, genuinely helps with blood sugar control.
It’s worth being clear that these are general principles, not a one-size-fits-all meal plan. The right approach for you depends on your blood sugar readings, your weight trajectory, and your overall health, which is exactly why gestational diabetes management should be personalised with your doctor or a dietitian, rather than followed generically from an article online.
Monitoring at Home
Once diagnosed, most women are asked to monitor their blood sugar at home using a glucometer, typically a fasting reading first thing in the morning, and readings an hour or two after meals. Keeping a simple log of these numbers helps your doctor see patterns over days and weeks, not just a single snapshot, and adjust your management plan accordingly.
When Diet Alone Isn’t Enough
For some women, diet and activity changes aren’t sufficient to keep blood sugar in the target range, and that’s not a failure on your part, it simply means your body needs additional support. In these cases, your pregnancy doctor may recommend medication, which could be oral tablets or insulin injections, depending on your specific readings. Insulin is safe to use in pregnancy and doesn’t cross the placenta in a way that harms the baby, many women hesitant about “starting insulin” are relieved to learn this once it’s explained properly.
After Delivery: What Happens Next
For most women, blood sugar returns to normal shortly after delivery, and gestational diabetes doesn’t carry forward. However, doctors typically recommend a follow-up glucose test around 6–12 weeks postpartum to confirm this, since gestational diabetes does raise your long-term risk of developing type 2 diabetes later in life. This makes postpartum follow-up genuinely important, even once the pregnancy itself feels like it’s behind you, and it’s a good reason to maintain some of the dietary habits you’ve built, well beyond delivery.
Why Consistent Antenatal Care Matters Here
Gestational diabetes is a good example of why routine antenatal visits matter even when everything feels fine. It’s a condition that’s almost always silent until it’s tested for, and it’s also one of the most manageable pregnancy complications when caught and monitored consistently. At Momstory, our obstetric team builds glucose screening into every pregnancy’s standard antenatal schedule and works alongside dietitians to personalise a plan if you’re diagnosed, rather than handing you a generic printed diet sheet and sending you on your way.
Get a Personalised Plan
If you’ve been diagnosed with gestational diabetes, or you’re due for your screening test soon, our obstetric and nutrition team can guide you through exactly what your numbers mean and build a diet plan around your specific readings. Book a consultation at Momstory to get started.
Frequently Asked Questions
- Can gestational diabetes go away on its own without treatment?
It requires active management, diet, monitoring, and sometimes medication, through the rest of the pregnancy. Left unmanaged, it doesn’t simply resolve and can increase risks for both mother and baby. It typically does resolve after delivery, but should be confirmed with a follow-up test. - Will I definitely need insulin if I’m diagnosed with gestational diabetes?
No. Many women manage gestational diabetes successfully through diet and activity changes alone. Medication, including insulin, is only added if blood sugar targets aren’t being met through lifestyle changes. - Is gestational diabetes caused by eating too much sugar during pregnancy?
No, it’s caused by pregnancy hormones affecting insulin function, not by diet alone. However, diet plays a major role in managing it once diagnosed. - Can I have a normal delivery if I have gestational diabetes?
Yes, in most cases. Many women with well-managed gestational diabetes have normal vaginal deliveries. Your doctor will monitor your baby’s growth and your blood sugar control to guide delivery planning. - Does gestational diabetes affect future pregnancies?
Having it once does raise the chance of it recurring in future pregnancies, which is why doctors usually screen earlier in subsequent pregnancies if you have a history of GDM.
