How to Increase Your Milk Supply While Pregnant

Posted on February 09, 2026

Introduction
Why Milk Supply Changes During Pregnancy
Is It Safe to Breastfeed While Pregnant?
How to Support Your Milk Supply Naturally
Using Galactagogues During Pregnancy
Managing Physical Comfort While Nursing
Preparing for Tandem Nursing
Supporting Your Older Child
The Role of Pumping While Pregnant
Nutrition Tips for the Pregnant and Nursing Parent
Listening to Your Body
Conclusion
FAQ

Introduction

Finding out you are pregnant while you are still breastfeeding an older child can bring up a whirlwind of emotions. You might feel excited about the new addition to your family, but you may also feel a bit anxious about what this means for your current nursing relationship. Many parents wonder if they can keep up their milk supply or if it is even safe to continue breastfeeding during those nine months.

At Milky Mama, we know that this journey is unique for every family. Breastfeeding while pregnant is a beautiful way to maintain a bond with your older child, but it does come with its own set of challenges. Most importantly, we want you to know that for most healthy pregnancies, continuing to nurse is perfectly safe and nutritionally sound.

This article will explore why supply often dips during pregnancy and the steps you can take to support your production. We will cover nutrition, hydration, and how to manage the physical changes your body is undergoing. Our goal is to provide you with the tools and encouragement you need to navigate this transition with confidence.

Why Milk Supply Changes During Pregnancy

It is very common to notice a decrease in your milk supply once you become pregnant. For many parents, this is actually one of the first signs that they are expecting again. This change is not a reflection of your body failing or your "demand" being too low. Instead, it is a direct result of the powerful hormonal shifts required to grow a new human being.

During pregnancy, your levels of estrogen and progesterone rise significantly. Progesterone, in particular, is known to inhibit milk production. While your body is focused on supporting the developing fetus and the placenta, the signals that usually tell your breasts to make large amounts of milk can get a bit muffled.

Around the fourth or fifth month of pregnancy, your milk will also begin to change in composition. It starts to transition back into colostrum. Colostrum is the thick, nutrient-dense "first milk" that is high in antibodies and proteins. It is designed to protect a newborn’s immune system. Because colostrum is produced in smaller quantities than mature milk, your older child might notice the volume drop or the taste change, as colostrum tends to be saltier.

Key Takeaway: The dip in milk supply during pregnancy is primarily driven by hormones, not a lack of nursing or pumping effort.

For additional guidance on these changes, read Milky Mama’s guide to breastfeeding while expecting and supporting milk supply.

Is It Safe to Breastfeed While Pregnant?

One of the most frequent concerns we hear is whether breastfeeding can cause early labor. This worry stems from the fact that breastfeeding releases oxytocin. Oxytocin is the "love hormone" responsible for the let-down reflex (the release of milk from the breast) and is also the hormone that causes uterine contractions during labor.

However, for a healthy, low-risk pregnancy, the amount of oxytocin released during breastfeeding is generally not enough to trigger preterm labor. The uterus has specific receptor sites for oxytocin, and these receptors do not typically become sensitive enough to trigger significant contractions until very late in pregnancy. In most cases, if it is safe for you to have sexual intercourse, it is safe for you to continue breastfeeding.

There are certain situations where your healthcare provider might suggest weaning or limiting nursing. These include:

A history of preterm labor or miscarriage.
Carrying multiples (twins or more).
Experiencing unexplained uterine pain or bleeding.
Being advised to follow "pelvic rest" by your doctor.

Always consult with your healthcare provider or a certified lactation consultant to discuss your specific health history. They can help you determine the best path forward for you and your babies. Milky Mama’s breastfeeding help and virtual lactation consultations can provide personalized support for concerns such as low supply, pumping, latch, sore nipples, and engorgement.

How to Support Your Milk Supply Naturally

While you cannot "out-pump" pregnancy hormones, you can certainly take steps to optimize the supply you do have. Supporting your body through these dual demands—pregnancy and lactation—requires a focused approach to your overall wellness.

Prioritize Extra Calories

Creating milk and growing a baby at the same time is hard work for your metabolism. On average, a person breastfeeding while pregnant may need an additional 500 to 800 calories per day compared to their pre-pregnancy needs. If you are experiencing morning sickness or a loss of appetite, this can be a struggle.

Focus on nutrient-dense foods that pack a punch. Think about adding healthy fats like avocado, nuts, and seeds to your meals. Small, frequent snacks can often be easier to manage than three large meals. Our Emergency Brownies are a favorite among many of our parents because they provide a tasty, calorie-dense snack specifically formulated with ingredients like oats and flaxseed to support lactation.

Focus on Targeted Hydration

Your fluid needs increase significantly during pregnancy, and breastfeeding adds another layer to that requirement. Dehydration is a common cause of a temporary supply dip. Aim to drink when you are thirsty and keep a water bottle with you at all times.

Sometimes, plain water isn't enough to keep you feeling replenished. Electrolytes play a major role in hydration. Our Lactation LeMOOnade™ or Pumpin’ Punch™ drink mixes can be great options to keep your fluids up while providing a refreshing treat. These drinks are designed to help you stay hydrated while providing ingredients that support milk production.

Get More Rest

Fatigue is a hallmark of the first and third trimesters. When you are exhausted, your body may prioritize the pregnancy over milk production. While "sleep when the baby sleeps" is often easier said than done, try to find small windows for rest throughout the day. Lowering your stress levels and allowing your body to recover can help maintain the energy needed for lactation.

Continue Regular Milk Removal

Even though hormones are the main driver of the supply drop, the "supply and demand" rule still applies to some extent. Continuing to nurse or pump regularly tells your body that the milk is still needed. If your older child is frustrated by the lower flow, you might try breast compressions. Breast compression involves gently squeezing the breast while the child is nursing to help more milk move through the ducts.

Using Galactagogues During Pregnancy

A galactagogue is a substance—usually an herb or food—that is used to help increase milk supply. Many parents turn to supplements when they notice their supply dropping. However, when you are pregnant, you must be extra cautious about the herbs you consume.

Some common lactation herbs are not recommended during pregnancy because they could potentially stimulate the uterus. We always recommend choosing supplements that are specifically formulated without ingredients that might be contraindicated for pregnancy.

Our Lady Leche™ supplement is a great example of a formula that focuses on supportive herbs like moringa and nettle. Nettle is often praised by herbalists for being rich in iron and vitamins, which can be very beneficial during pregnancy. Moringa is a nutritional powerhouse that has been used for centuries to support milk production. You can explore Lady Leche™ and other lactation supplements before discussing any option with your healthcare provider.

What to Do Next:

Track your daily water intake to ensure you are hitting at least 80 to 100 ounces.

Increase your daily caloric intake by adding two nutrient-dense snacks.

Consult with a lactation consultant to create a personalized plan.

Disclaimer: This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice before starting any new supplement.

Managing Physical Comfort While Nursing

Breastfeeding while pregnant isn't always physically easy. Hormonal changes can lead to increased nipple sensitivity or even pain. This "nursing aversion" or sensitivity can make it difficult to continue your breastfeeding journey.

Nipple Sensitivity

The rise in estrogen and progesterone often makes the nipples very tender. For some, the initial latch can feel quite sharp. To help with this, ensure your older child still has a deep, comfortable latch. Sometimes toddlers get "lazy" with their latch as they get older, and a quick correction can make a world of difference. You can also use a soothing nipple balm or cold compresses after nursing sessions to calm the skin.

Nursing Aversion

Some parents experience a phenomenon called "nursing agitation" or aversion. This is a feeling of intense irritability or a "skin-crawling" sensation when the child latches. This is a physiological response to hormones, not a reflection of your love for your child.

If you experience this, try using distraction techniques. Listening to music, scrolling on your phone, or practicing deep breathing can help you get through the session. You can also set boundaries with an older child, such as using a timer to limit the length of the nursing session.

Preparing for Tandem Nursing

Tandem nursing is the practice of breastfeeding two or more children of different ages at the same time. If you continue to nurse through your pregnancy, you may find yourself tandem nursing once the new baby arrives.

For more information about the experience, read Milky Mama’s guide to tandem breastfeeding and deciding whether it is right for your family.

The Return of Mature Milk

After you give birth, your body will transition from colostrum back to mature milk. This usually happens within three to five days postpartum. Because you already have an older child nursing, your milk may "come in" more quickly and in larger quantities. The older child can actually be very helpful in relieving engorgement (the painful swelling of the breasts when they are overfull).

Prioritizing the Newborn

While there is usually enough milk for both children, the newborn’s needs should always come first. Colostrum is vital for the baby’s first few days of life. Most lactation experts suggest letting the newborn nurse first to ensure they get the colostrum they need before the older child finishes the session. Once your mature milk is fully established, the supply usually adjusts to meet the needs of both children.

Supporting Your Older Child

If your milk supply drops significantly, your older child might become frustrated or even decide to wean on their own. This is a natural part of the process for many families. However, if your child is under one year old and your supply drops, you must ensure they are still getting enough nutrition.

For a baby under 12 months, breast milk or formula must remain their primary source of nutrition. If your supply is no longer meeting their needs, you may need to supplement with stored breast milk or infant formula. If your child is over a year old, they can usually make up for the lower milk volume by eating more solid foods and drinking water or cow’s milk (or a suitable alternative).

Remember that breastfeeding is about so much more than just the milk. For a toddler, it is a source of comfort, safety, and connection. Even if they are "dry nursing" (nursing when very little milk is present), they are still receiving those emotional benefits.

The Role of Pumping While Pregnant

Can you use a breast pump to increase your supply during pregnancy? While pumping is a great tool for increasing supply under normal circumstances, it may have limited effectiveness while you are pregnant. Because the "blocker" is the pregnancy hormones in your bloodstream, extra stimulation from a pump might not result in a significant increase in volume.

However, if you are separated from your nursing child or if they are nursing less frequently, pumping can help maintain the supply you currently have. If you do choose to pump, keep your sessions short and focused on comfort. Many parents find that wearable pumps are helpful during this time so they can rest or move around while managing the physical demands of pregnancy.

Nutrition Tips for the Pregnant and Nursing Parent

Eating for three (you, the baby in your womb, and your nursing child) requires a strategic approach. It is not just about the quantity of food, but the quality.

Iron and Protein

Your blood volume increases significantly during pregnancy, which increases your need for iron. Breastfeeding also requires adequate protein for milk synthesis. Focus on:

Lean meats or poultry
Beans and lentils
Dark leafy greens (spinach, kale)
Eggs and dairy

Healthy Fats

DHA and other omega-3 fatty acids are essential for the brain development of both the fetus and the nursing child. You can find these in:

Fatty fish (like salmon)
Walnuts
Chia seeds
Flaxseed (which is also a great galactagogue)

The Power of Oats

Oats are one of the most well-known foods for supporting milk supply. They are rich in iron and fiber, and they contain beta-glucan, which is thought to support lactation hormones. Starting your day with a bowl of oatmeal or having a lactation cookie as a snack is an easy way to incorporate this into your routine.

For more information about ingredients commonly used in lactation support, explore Milky Mama’s ingredient guide.

Listening to Your Body

At the end of the day, the most important thing you can do is listen to your body. Pregnancy is a marathon, and breastfeeding at the same time is like running that marathon while carrying a backpack. It is okay if your goals change.

Some parents find that they love tandem nursing and the bond it creates between siblings. Others find that weaning during pregnancy is the best choice for their mental and physical health. There is no right or wrong way to feed your children. Your worth as a parent is not measured in ounces or months spent at the breast.

If you find that your supply is decreasing despite your best efforts, take a deep breath. You are still providing your child with love, comfort, and a wonderful foundation of health. Every drop of milk they received—and continue to receive—is a gift.

Conclusion

Increasing or maintaining your milk supply while pregnant is a balancing act between biology and effort. While pregnancy hormones will naturally cause a dip in production, focusing on high-quality nutrition, hydration, and rest can help you support your body through this transition. We are here to walk alongside you, providing the products and education you need to feel empowered.

Whether you continue to nurse through your entire pregnancy or decide to transition to a new phase, remember that you are doing an incredible job. Your body is doing something miraculous by sustaining two lives at once.

"Every drop counts, but your well-being matters just as much."

If you need extra support, our virtual lactation consultations are a great way to get personalized advice from an expert who understands the complexities of breastfeeding during pregnancy.

FAQ

Can I use lactation supplements like Pumping Queen™ while pregnant?

It is best to choose supplements that are specifically safe for pregnancy. While many of our products are made with gentle herbs, we recommend Lady Leche™ or our lactation treats like Emergency Brownies for pregnant parents. Always check with your doctor before starting any herbal supplement during pregnancy to ensure it aligns with your health needs.

Will my older child be taking colostrum away from the new baby?

No, your body will continue to produce colostrum as long as it is being stimulated. Your breasts do not "run out" of colostrum. While your older child may consume some during pregnancy or after the birth, your body will keep making it for the newborn until your mature milk comes in.

Why does my milk taste different now that I'm pregnant?

As your body prepares for the new baby, your milk transitions back to colostrum. Colostrum has a higher sodium and chloride content than mature milk, which gives it a saltier taste. Additionally, the decrease in lactose (milk sugar) makes it taste less sweet, which is why some toddlers may notice the change and nurse less.

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