How to Increase Your Milk Supply While Pregnant

Posted on February 09, 2026

Introduction
Understanding Why Milk Supply Changes During Pregnancy
Practical Ways to Support Your Milk Supply
Managing Nursing Challenges During Pregnancy
Safe Support Tools for Pregnant Parents
When the Nursing Child is Under One Year Old
Preparing for Tandem Nursing
Conclusion
FAQ

Introduction

Finding out you are pregnant while still breastfeeding your older child can bring up a whirlwind of emotions. You might feel a mix of excitement for the new addition and a bit of worry about how this affects your current nursing relationship. It is a unique journey that many parents navigate successfully, but it does come with specific challenges. At Milky Mama, we believe that every drop counts and that you deserve the best support while nourishing your growing family.

This post will explore the physiological changes that happen when you are pregnant and breastfeeding simultaneously. We will cover practical ways to support your supply, manage physical discomfort, and ensure both your nursing child and your developing baby get what they need. Our goal is to provide you with the tools to feel empowered during this transition.

While your body goes through significant hormonal shifts that naturally impact lactation, there are steps you can take to support your health and milk production. Understanding the "why" behind these changes is the first step in managing them.

Understanding Why Milk Supply Changes During Pregnancy

When you become pregnant, your body begins a complex hormonal dance to support the new life growing inside you. These same hormones, however, can have a direct impact on your current milk supply. Most breastfeeding parents notice a significant drop in milk volume during the second trimester, though for some, it happens much earlier.

The Role of Pregnancy Hormones

The primary reason for a supply drop during pregnancy is the rise in estrogen and progesterone. These hormones are essential for maintaining a healthy pregnancy, but they act as inhibitors for milk production. Progesterone, in particular, sends a signal to the breast tissue to slow down the production of mature milk.

This is a natural process called lactogenesis I, which is the first stage of milk production. During this time, your breasts are preparing to make colostrum for the new baby. Because these hormonal signals are so strong, traditional methods of increasing supply—like power pumping or nursing more frequently—may not be as effective as they are when you aren't pregnant.

The Shift to Colostrum

Around the fourth or fifth month of pregnancy, your milk composition will likely change. It transitions from mature breast milk back into colostrum. Colostrum is often called "liquid gold." It is a thick, concentrated milk that is very high in antibodies and protein, designed to protect a newborn’s immune system.

For your older nursing child, this shift might change the taste of the milk. Colostrum is saltier and less sweet than mature milk. Some children do not mind the change, while others may choose to wean on their own because of the different flavor or the slower flow. It is important to know that nursing through pregnancy will not "run out" of colostrum for the new baby; your body will continue to produce it.

The Let-Down Reflex and Sensitivity

You might also notice that your let-down reflex feels different. The let-down reflex is the tingling or tightening sensation that happens when milk begins to flow. During pregnancy, your nipples and breasts may become extremely sensitive or even painful due to increased blood flow and hormonal changes. This can make the let-down feel more intense or even uncomfortable.

Key Takeaway: A drop in milk supply during pregnancy is primarily driven by hormones rather than a lack of demand. While you can support your body, understand that some decrease is a normal physiological response to pregnancy.

Practical Ways to Support Your Milk Supply

Even though hormones play a major role, your lifestyle and nutrition are still vital. Supporting your body allows it to function at its best while performing the double duty of growing a baby and making milk.

Prioritize High-Calorie, Nutrient-Dense Foods

Your body is working incredibly hard right now. You are essentially eating for three: yourself, your nursing child, and your developing baby. This requires a significant amount of energy. On average, a breastfeeding and pregnant parent may need an additional 500 to 800 calories per day depending on the age of the nursing child and the stage of pregnancy.

Focus on foods that provide sustained energy and support lactation. These are often called galactagogues—foods or herbs that may help support milk supply.

Oats: These are a fantastic source of iron and fiber, which are essential for energy.
Healthy Fats: Avocado, nuts, and seeds provide the healthy fats needed for milk quality and baby’s brain development.
Protein: Lean meats, beans, and eggs help with tissue repair and growth for both children.
Complex Carbs: Sweet potatoes and whole grains help keep your blood sugar stable.

Hydration and Electrolytes

Dehydration is a common culprit for a sudden dip in supply. When you are pregnant, your blood volume increases significantly, which requires more water. When you add breastfeeding to the mix, your fluid needs skyrocket.

Plain water is great, but electrolytes are even better for absorption. Our Pumpin' Punch™ drink mix is a popular choice for parents looking to stay hydrated while supporting their supply. Keeping a water bottle with you at all times and sipping throughout the day is one of the simplest things you can do for your supply.

Frequent Breast Stimulation

While hormones are the boss during pregnancy, the "supply and demand" rule still exists to some extent. Supply and demand means that the more milk is removed from the breast, the more your body is signaled to produce. If your toddler is nursing less because of the taste change, you might consider using a breast pump for a few minutes a day to maintain stimulation.

However, be mindful of how you feel. If pumping causes uterine contractions or extreme nipple pain, it is okay to scale back. Always listen to your body and consult with your healthcare provider if you experience any concerning cramping.

What to do next:

Increase your daily caloric intake with healthy snacks like nut butter or yogurt.
Drink at least 80–100 ounces of fluids daily, including electrolyte-rich drinks.
Maintain a consistent nursing or pumping schedule if it is comfortable for you.
Talk to your doctor about a high-quality prenatal vitamin to fill any nutritional gaps.

Managing Nursing Challenges During Pregnancy

Breastfeeding while pregnant isn't just a physical feat; it’s an emotional one too. Many parents experience nursing aversion, a feeling of restlessness or irritability while the child is latched. This is very common and is often caused by the intense hormonal shifts.

Handling Nipple Sensitivity

Nipple soreness is often one of the first signs of pregnancy for breastfeeding moms. To manage this, ensure your child still has a deep, comfortable latch. Even an older toddler can get lazy with their latch, which causes more pain for you.

You can also try:

Applying a nipple balm or expressed milk to the area after nursing.
Using cold compresses or hydrogel pads between sessions.
Shortening nursing sessions if the pain becomes too much.

Dealing with Nausea and Breastfeeding

Morning sickness can make it hard to stay hydrated and nourished. Some parents find that nursing actually triggers nausea. If this happens, try to have a small, bland snack like crackers before you start nursing.

Keeping your blood sugar stable is key. If you are struggling to keep food down, focus on small sips of our Lactation LeMOOnade™ drink mix to keep your electrolytes up without overwhelming your stomach.

Prioritizing Rest and Stress Management

High stress levels can interfere with your let-down reflex and overall well-being. Your body is doing a lot of heavy lifting. If you are exhausted, your milk supply may reflect that.

Rest is not a luxury; it is a necessity during this time. Try to nap when your child naps, or ask for help with household chores so you can put your feet up. A well-rested body is much better at managing the demands of pregnancy and lactation.

Safe Support Tools for Pregnant Parents

When looking for ways to support your supply, you might turn to lactation products. However, you must be careful, as some herbs are not recommended during pregnancy.

Milky Mama Lactation Treats

Many parents find that incorporating lactation-friendly snacks into their diet helps them feel more energized and supported. Our Emergency Lactation Brownies are a fan favorite. They are packed with oats, brewer’s yeast, and flaxseed. These ingredients are generally considered safe and provide the extra calories and nutrients your body needs to maintain supply.

These treats are an easy way to satisfy pregnancy cravings while also doing something beneficial for your breastfeeding journey. They are convenient for busy parents who might forget to eat a full meal between chasing a toddler and managing pregnancy fatigue.

Herbal Support and Safety

If you are considering herbal supplements to support your supply, always check with your healthcare provider first. Some herbs can stimulate the uterus, which might not be safe during pregnancy. We offer several supplements, such as Lady Leche™, which are designed to support lactation through a blend of carefully selected herbs.

This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice. It is important to remember that during pregnancy, your body may not respond to supplements the same way it does postpartum. The primary goal during this time is often maintenance rather than a massive increase.

When the Nursing Child is Under One Year Old

If you become pregnant while nursing a baby who is under 12 months old, there are additional considerations. Before the age of one, breast milk or formula should be the primary source of nutrition. Because pregnancy often causes a supply drop, you must ensure your baby is still getting enough calories and nutrients.

Monitoring Growth and Weight Gain

Watch your baby’s diaper output and weight closely. If your supply drops significantly, they may not be getting the volume they need for healthy growth. Signs that your baby is getting enough include:

At least 6 wet diapers in a 24-hour period.
Consistent weight gain confirmed by your pediatrician.
The baby appearing satisfied and settled after most feedings.

Supplemental Feeding Options

If you notice your supply is no longer meeting your baby's needs, you may need to supplement. This can be done with donor milk or infant formula. If your baby is over six months old, you may also be able to increase their intake of nutrient-dense solid foods, but this should be discussed with your pediatrician.

Some parents choose to use a supplemental nursing system (SNS). This allows the baby to receive supplemental milk through a small tube while still nursing at the breast. This keeps the baby fed while providing the breast stimulation you need to keep whatever supply you have active.

Key Takeaway: If your nursing child is under one, their growth is the priority. Be prepared to supplement if your pregnancy hormones cause your supply to dip below what they require.

Preparing for Tandem Nursing

Tandem nursing is the practice of breastfeeding two children of different ages at the same time. Many parents choose to continue nursing through pregnancy specifically so they can tandem nurse once the new baby arrives.

Tandem nursing has several benefits:

Bonding: It can help the older child feel more connected to the new baby and reduce feelings of jealousy.
Supply Boost: Having two children nursing often leads to a very robust milk supply once the new baby is born.
Relief: An older child can help "drain" the breast if you are experiencing engorgement after your milk comes in.

To prepare for this, talk to your older child about the changes coming. If they are old enough, explain that the "new milk" (colostrum) is for the baby, but there is still some for them too. After the birth, it is usually recommended to let the newborn nurse first to ensure they get the colostrum they need, followed by the older child.

For more guidance on this transition, you may also want to explore Milky Mama’s Breastfeeding Through Pregnancy support guide or their tandem breastfeeding article.

Conclusion

Increasing or maintaining your milk supply while pregnant is a journey that requires patience, self-care, and a good understanding of your body. While hormonal shifts are inevitable and often lead to a decrease in volume, you can support your system through proper nutrition, hydration, and rest. Whether you choose to nurse all the way through to tandem feeding or your child decides to wean naturally, remember that you are doing an amazing job.

Every family's journey is unique. Some parents find their supply stays steady, while others see a significant drop. No matter what happens, the bond you share with your child is about much more than just the milk. We at Milky Mama are here to support you with products and education to make this transition as smooth as possible. You’ve got this, and we’re here to help you every step of the way.

For ongoing support, you can also visit Milky Mama’s breastfeeding help page or explore the Breastfeeding 101 course.

This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice.

FAQ

Can I really increase my milk supply while pregnant?

While you can support your supply with nutrition and hydration, pregnancy hormones naturally suppress milk production. For many people, these hormones are stronger than traditional supply-boosting methods like pumping. Focus on maintaining your health and accepting that a natural dip in volume is common.

Is it safe to take lactation supplements while pregnant?

Some lactation herbs are safe during pregnancy, while others are not. It is vital to consult with your OB-GYN or midwife before starting any new supplement. They can help you determine if the specific ingredients are appropriate for your stage of pregnancy and your health history.

Will my toddler take all the colostrum away from the new baby?

No, your body will continue to produce colostrum throughout the end of your pregnancy and the first few days after birth. Colostrum is not a "finite" amount that can be used up. Your body is designed to provide for the newborn first, and tandem nursing will not deprive the baby of these essential nutrients.

How do I know if my nursing baby is getting enough milk while I'm pregnant?

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How to Increase Your Milk Supply While Pregnant

Table of Contents

Introduction