What a Gestational Diabetes Diagnosis Actually Means

Q: Will gestational diabetes go away after my baby is born?

GD usually settles after birth, once the placental hormones are gone. You will be offered a blood test at 6 to 13 weeks afterwards to confirm your blood glucose has returned to a normal level. In a small number of cases, your blood glucose stays raised, which can point to diabetes that was already there and showed up during pregnancy. Your postnatal test will make your status clear.

Q: How soon will I see a specialist after a gestational diabetes diagnosis?

You should be referred to a joint diabetes and antenatal team and seen within one to two weeks of your diagnosis. This team can include a diabetologist, an obstetrician, a specialist midwife or nurse, and a dietitian. Referral timelines vary between NHS trusts, so if you have not heard within that window, call your midwife.

Q: Does having gestational diabetes mean I will develop type 2 diabetes?

GD raises your chance of developing type 2 diabetes later on, though it does not mean you will. Lifestyle factors, including diet and movement, can lower that risk. Annual blood glucose screening with your GP after your first postnatal check is recommended, so any change in your blood sugar is picked up early.

Pregnant woman receiving medical advice from a nurse in a hospital setting.

The information in this article is for general informational purposes only and does not substitute for professional medical or dietary advice, particularly during pregnancy. If you are outside the UK, please consult your local doctor, midwife, or healthcare provider for guidance that reflects your country's recommendations.

A gestational diabetes diagnosis can change how your pregnancy feels overnight. You might feel anxious about what it means for your birth plan, thrown by unfamiliar numbers and new appointments, and sometimes guilty. The news can arrive by text or app, depending on your NHS trust, and the wait before you speak to a specialist team can feel unsettling. It helps to know from the start that most pregnancies with gestational diabetes, when managed well, end with a healthy baby.⁸

You do not need to have everything worked out straight away. Your care team will walk you through what happens next, and there is support around you, through your midwife, the specialist team, your partner, and the people close to you.¹

What gestational diabetes actually is

During pregnancy, your placenta makes hormones that help your baby grow. Those same hormones partly block insulin, the hormone that moves glucose from your blood into your cells. This is a normal part of pregnancy, and your body does it to keep more glucose available for your baby. To balance it out, your pancreas usually makes extra insulin.⁹

Gestational diabetes, or GD, develops when there isn't enough extra insulin to keep pace with that block, so your blood glucose rises above its normal range. It is not a lifelong condition and usually settles after birth, though the weeks afterwards carry a few things worth understanding, which we cover below. GD affects 10-20% of pregnant women in the UK, and the numbers are rising.²

What a gestational diabetes diagnosis means for your pregnancy

With the right management, the risks that come with GD can drop significantly. The main focus is keeping your blood glucose within a target range through changes to what you eat and how you move. You may also need medication, either Metformin tablets or insulin injections, to get there. Both are stopped after birth, and any medication decisions are made with your clinical team. In the UK, Metformin in pregnancy is used off-label, so it is only prescribed after a specific conversation with your clinician and with your informed consent.¹⁰

If your blood glucose is not well controlled, a few complications become more likely: your baby growing larger than usual, which can affect delivery; an earlier birth; or your baby having low blood sugar shortly after they are born. This is why your care is more involved than a standard antenatal pathway. It gives you a well-supported framework to monitor and protect both of you.³

You will have more frequent antenatal appointments and extra ultrasound scans to track your baby's growth through the rest of your pregnancy.¹¹

Your care team and what to monitor

After a GD diagnosis, you will be referred to a joint diabetes and antenatal team. This usually includes a diabetologist, an obstetrician, a specialist midwife or nurse, and a dietitian. You can expect to be seen within one to two weeks, though referral pathways vary by NHS trust. If you have not heard within that window, call your midwife.¹²

You will be given a blood glucose testing kit and shown how to use it. Home monitoring usually means testing first thing in the morning before you eat, which is your fasting reading, and again one hour after each main meal. Your care team will set your own targets, so follow their guidance rather than treating any general figures as fixed.⁴

The type 2 diabetes conversation

A GD diagnosis does raise your chance of developing type 2 diabetes later on. The risk is real and worth taking seriously, and it is also something you can take practical steps around.⁵

Lifestyle factors, including weight, diet, and regular movement, can meaningfully lower the chance of developing type 2 diabetes. They are areas where change, when it is possible for you, can make a difference. Your GP is the right person to talk this through with in the months after birth.⁷

Monitoring after your baby is born

Any glucose-lowering medication is stopped after birth, and your clinical team will confirm this and manage the change. GD usually settles once the placental hormones are gone, and a postnatal blood test is offered at 6 to 13 weeks to confirm your blood glucose has returned to a normal range. The type of test can vary, so your team will tell you which one applies to you.¹⁴

After that first postnatal check, annual screening for type 2 diabetes with your GP is recommended. Going to those yearly checks is one of the most straightforward ways to stay informed about your health in the years ahead.⁶

Frequently Asked Questions

Will gestational diabetes go away after my baby is born?

How soon will I see a specialist after a gestational diabetes diagnosis?

Does having gestational diabetes mean I will develop type 2 diabetes?

What does home blood glucose monitoring involve?

Sources

[1] Gestational Diabetes UK, "Gestational Diabetes Diagnosis: What Happens Next"

Support is available through your midwife, the specialist team, your partner, and people around you.
[2] Gestational diabetes causes

GD affects 10-20% of pregnant women
[3] Complications of gestational diabetes

If blood glucose is not well controlled, there are potential complications: the baby growing larger than usual, which can affect delivery; premature birth; or the baby having low blood sugar shortly after birth.
[4] Diabetes UK, "Gestational diabetes care"

You will be provided with a blood glucose testing kit and shown how to use it. Home monitoring usually means testing first thing in the morning before eating (a fasting reading) and one hour after each main meal.
[5] Preventing type 2 diabetes after gestational diabetes

GD carries an elevated risk of developing type 2 diabetes later in life. Up to half of women with GD develop type 2 diabetes within 5 to 10 years after giving birth.
[6] Preventing type 2 diabetes after gestational diabetes

After the initial postnatal check, annual screening for type 2 diabetes with your GP is recommended.
[7] Preventing type 2 diabetes after gestational diabetes

Lifestyle factors including weight, diet, and regular physical activity can meaningfully reduce the likelihood of developing T2D.
[8] Gestational Diabetes UK, "Gestational Diabetes Diagnosis: What Happens Next"

The gap between receiving the news, which can arrive by text or app depending on your NHS trust, and speaking to a specialist team can feel unsettling.
[9] Johns Hopkins Medicine, "Gestational Diabetes Mellitus (GDM)"

During pregnancy, the placenta produces hormones that support your baby's growth. These hormones also partially block insulin. This is a normal part of pregnancy: the body does it to keep more glucose available for the baby.
[10] Treatment — Gestational diabetes (NHS)

With appropriate management, the risks associated with GD can be significantly reduced. The main focus is keeping blood glucose levels within a target range through changes to diet and physical activity. Some women also need medication — Metformin tablets or insulin injections — to achieve this. Both are stopped after birth.
[11] Diabetes UK, "Gestational diabetes care"

You will have more frequent antenatal appointments and additional ultrasound scans to track your baby's growth throughout the pregnancy.
[12] Diabetes UK, "Gestational diabetes care"

After a gestational diabetes diagnosis, you will be referred to a joint diabetes and antenatal team including a diabetologist, obstetrician, specialist midwife or nurse, and a dietitian. You should expect to be seen within one to two weeks of diagnosis.
[13] Tommy's, "Blood Sugar Levels & Tests With Gestational Diabetes"

Typical targets set in line with current guidelines are below 5.3 mmol/L when fasting and below 7.8 mmol/L one hour after meals.
[14] NICE, "Your care after the birth"

Any glucose-lowering medication is stopped after birth. GD usually resolves once the placental hormones are no longer present, but a postnatal blood test is offered at 6 to 13 weeks to confirm your blood glucose has returned to a normal range.