The smart way to manage diabetes in pregnancy.

If you’re staring at your fasting glucose number every morning wondering “what on earth did I do wrong?”— take a deep breath.

Fasting blood sugar during pregnancy (especially with gestational diabetes) can feel like the most frustrating number. You can eat perfectly all day and still wake up to something higher than you hoped for.

Here’s the truth: fasting glucose is heavily influenced by hormones. And pregnancy hormones are powerful.

That doesn’t mean you’re helpless. It just means we focus on what is in your control, realistically and without guilt.

Let’s walk through it.

1. Look at Your Daytime Eating Habits

While all of the mommy forums are talking about the “best bedtime snack for fasting glucose”, nobody is mentioning that what you eat during the day absolutely impacts your overnight numbers. Start by asking yourself:

• Am I eating regularly?
• Am I getting enough protein?
• Am I unintentionally under-eating carbs?

Eat Meals and Snacks Consistently

Skipping meals or going long stretches without eating could be making your fasting numbers worse.

Your body likes predictability and to not dip into “starvation” mode during the day. This could lead to overeating at upcoming meals and generally just cause some “stress” on your system, which in turn raises blood sugars.

You don’t need to follow a super rigid schedule every day, but aim to eat within the first 69-90 minutes of waking up in the morning, 3 balanced meals during the day, 2–3 well-timed snacks, and generally eating every 3–4 hours as your appetite and body allow.

Don’t Go Too Low Carb

It’s tempting to slash carbs when glucose numbers feel scary. But going too low-carb can actually backfire!

When you don’t eat enough carbohydrates during the day:

• Stress hormones can rise.
• Your liver may “dump” extra sugar into your bloodstream while you sleep.

If your post-meal numbers are 50 points below goal, that may be a sign you went too low carb! Consider pushing your carb intake up a bit and prioritizing a consistent intake of carbs (balanced with protein, fat, and fiber, of course) throughout the day to the extent that your blood sugars can tolerate.

Ensure Enough Protein

Protein is the calm, grounded bestie keeping your glucose from spiraling. Protein will:

• Stabilize blood sugar
• Help you feel full
• Provide nutrients that supports baby’s growth and mom’s body
  

Most women with elevated fasting numbers benefit from intentionally increasing protein at meals and snacks. Work to include more eggs, high protein dairy, chicken, fish, beef, and nuts in your diet. If your daytime intake is low, your overnight numbers may reflect this. Speaking with a dietitian to determine your personal protein goals and ways to meet the pregnancy demand is a helpful place to start if you’re stuck!

2. Examine Your Evening Routine

Now let’s zoom in on the hours before bed.

Avoid a Late, Large Meal

Large dinners, especially eaten close to bedtime, can keep glucose elevated for hours.

If possible:

• Finish dinner 2–3 hours before bed.
• Keep portions moderate.
• Balance carbs with protein and fat.
  

If dinner is late because… life? Don’t panic. You might need to play around with the carb content for these later dinners.

Consider a Bedtime Snack

For some women, a bedtime snack improves fasting glucose. For others, it doesn’t.

Like a lot of aspects to pregnancy, this is highly individual.

If you try a bedtime snack, experiment with combinations like:

Option 1: Protein + Carb

• Apple slices + peanut butter
• Cottage cheese + berries
• Whole grain toast + egg
  

Option 2: Mostly Protein

• Zero sugar yogurt
• A small protein shake
• Cheese + a few seed crackers
  

Some women do better with carbs at night. Some do better with no carbs, or even no snack. Gentle experimentation (for 3–4 days per change) is usually more helpful than nightly panic-adjustments.

Time Between Last Bite and Wake-Up

If there’s a very long stretch between your last bite and breakfast (10+ hours), your liver may release extra glucose overnight. This happens for all bodies, but your placental hormones make it tougher to recover from!

Sometimes slightly shortening the fasting window can help. This is the idea behind the later, light bedtime snack. Monitor your patterns and see if a fasting window of only 7, 8,  or 9 hours is better for your overnight glucose trend. Again, this varies. There is no universal “right” answer.

3. Movement (Yes, It Helps! But It Doesn’t Have to Be Intense)

Movement improves insulin sensitivity, meaning your body uses glucose more effectively. It can help lower blood sugars in the moment, but also “in the background” aka when you’re at rest and sleeping or between meals. Here are some strategies to consider for movement.

During the Day, Try:

• A 10–15 minute walk after meals
• Light stretching
• Prenatal yoga
• Household movement
  

Small, consistent activity matters more than intense workouts.

Strength Training (Even Without Weights)

The more muscle mass you have, the better your body handles glucose- muscles become a big sugar sponge! You could consider exercises like:

• Bodyweight squats
• Wall push-ups
• Resistance bands
• Seated barre-style moves
  

Even 2–3 short sessions per week can make a difference. As always, be mindful of your physical limitations and comfort, especially if you’re newer to exercise.

4. Things We May Not Be Able to Control

This part matters.

Sometimes fasting glucose is elevated because of factors completely outside your control.

Sleep (Or Lack of It)

Pregnancy sleep is… not always peaceful.

You might:

• Wake up to pee 3 times
• Toss and turn with hip pain
• Struggle with insomnia
  

Poor or fragmented sleep raises stress hormones — which can raise fasting glucose.

That is not your fault.

Do what you can:

• Support pillows
• Magnesium (if approved by your provider)
• Consistent bedtime
• Dim lighting before bed
  

But also give yourself grace.

Hormones

Placental hormones increase insulin resistance as pregnancy progresses.

This is normal.
This is biological.
This is not a reflection of your effort.

Some women do “everything right” and still need medication or insulin for fasting numbers.

Needing support is not failure. It is physiology.

A Gentle Reminder

If you are an anxious mom-to-be reading this at 6 a.m. after waking up to another above target fasting number, remember this:

You did not cause this.
You are not harming your baby.
You are doing your best.

Fasting glucose is often the hardest number to control because it’s often influenced by overnight hormones more than food alone.

Focus on:

• Balanced daytime eating
• Adequate protein
• Consistency
• Gentle movement
• Realistic evening habits
  

And let go of the rest. Oftentimes the mental gymnastics of trying to get the routine absolutely perfect and still feeling disappointment in the morning is just not worth it. 

Your body is working incredibly hard right now, but you and your baby are a team. You’ve got this.