Is It Good to Be Breastfeeding While Pregnant? What to Know

Posted on May 26, 2026

Introduction
Is Breastfeeding While Pregnant Safe?
The Benefits for Your Older Child
Changes You May Experience
Managing Your Nutritional Needs
Understanding Nursing Aversion
Preparing for Tandem Nursing
Tips for a Comfortable Experience
When to Consider Weaning
Conclusion
FAQ

Introduction

Finding out you are pregnant while still breastfeeding your older child often brings a whirlwind of emotions. You might feel excitement for the new addition and a bit of "nerves" about how your body will handle both tasks. Many mothers worry if continuing to nurse is safe for the new baby or if it will take away vital nutrients from their pregnancy.

At Milky Mama, we believe in empowering you with the knowledge to make the best decision for your unique family. If you want a broader foundation before deciding, our Certified Lactation Consultant Breastfeeding Help page is a helpful next step. Whether you choose to continue your nursing journey or decide it is time to wean, we are here to support you every step of the way. This post covers the safety, nutritional needs, and physical changes you can expect during this transition.

Breastfeeding while pregnant is a personal choice that is generally safe for low-risk pregnancies and offers continued benefits for your older child.

Is Breastfeeding While Pregnant Safe?

The most common question parents ask is whether nursing will harm the developing baby. For the vast majority of healthy, low-risk pregnancies, the answer is yes, it is safe. Research shows that breastfeeding during pregnancy does not increase the risk of miscarriage or preterm birth in healthy individuals.

Some concern stems from the release of oxytocin during breastfeeding. Oxytocin is the hormone responsible for the "let-down" reflex, which is the process of milk flowing from the breasts. It is also the hormone that causes uterine contractions during labor. However, in a normal pregnancy, the uterus is not very sensitive to oxytocin until closer to your due date. The amount of oxytocin released during a typical nursing session is usually not enough to trigger preterm labor.

If you have a history of preterm labor, are carrying multiples, or have been advised to avoid sexual intercourse during pregnancy, your healthcare provider may suggest weaning. Always discuss your specific health history with your doctor or a certified lactation consultant to ensure the best path forward.

The Benefits for Your Older Child

Continuing to breastfeed provides more than just nutrition. It offers a sense of stability during a time of big changes. Your toddler or older baby may sense that things are shifting in the household. Keeping the nursing routine can provide the emotional comfort they need to feel secure.

Continued Nutritional Support

Even as your milk changes throughout pregnancy, it remains a source of antibodies and essential nutrients. It can help protect your older child from common illnesses, which is helpful when you are also trying to stay healthy during pregnancy.

Emotional Bonding

Breastfeeding is often a "parenting tool" that helps with naps, bedtime, and calming tantrums. Keeping this connection can make the transition to becoming a big brother or sister much smoother. It allows you to have quiet, focused time with your older child before the new baby arrives.

Key Takeaway: Breastfeeding during pregnancy is generally safe for low-risk pregnancies and provides both nutritional and emotional stability for your older child.

Changes You May Experience

While it is safe, breastfeeding while pregnant is not always easy. Your body is working overtime to grow a human and produce milk simultaneously. You will likely notice several physical and hormonal changes.

Nipple Tenderness

One of the earliest signs of pregnancy is often breast and nipple soreness. This tenderness can make breastfeeding feel uncomfortable or even painful for some mothers. Hormonal shifts are the primary cause of this sensitivity. You might find that adjusting your child’s latch or using a warm compress before nursing helps take the edge off.

A Drop in Milk Supply

Around the fourth or fifth month of pregnancy, many mothers notice a significant dip in their milk supply. This happens because the high levels of pregnancy hormones, particularly progesterone, interfere with milk production.

If your nursing child is under six months old and relies solely on breast milk, you must monitor their weight gain closely. You may need to supplement with expressed milk or formula if your supply drops too low. For older toddlers who eat plenty of solid foods, a dip in supply is usually not a nutritional concern. If you want a deeper look at how supply changes during pregnancy, our guide on breast milk supply decreasing during pregnancy is a helpful companion.

Changes in Milk Taste

As you move into the second and third trimesters, your milk begins to transition back into colostrum. Colostrum is the thick, yellowish "liquid gold" that is high in protein and antibodies, meant for your newborn. This change can make the milk taste saltier or less sweet. Some children may not mind the change, while others might choose to self-wean because they no longer like the taste or the slower flow.

Managing Your Nutritional Needs

When you are pregnant and breastfeeding, you are essentially "eating for three." Your body’s caloric and fluid requirements will increase significantly to support your health, the growth of the fetus, and the production of milk.

Increased Calorie Intake

On average, a breastfeeding mother needs an extra 450 to 500 calories per day. A pregnant mother in her second trimester needs about 340 extra calories, and in the third trimester, about 450 extra calories.

If you are doing both, you may need to consume an additional 800 to 1,000 calories a day. Focus on nutrient-dense foods like:

Lean proteins (eggs, beans, poultry)
Healthy fats (avocado, nuts, olive oil)
Complex carbohydrates (oats, brown rice, quinoa)
Calcium-rich foods (yogurt, leafy greens, fortified plant milks)

Hydration is Essential

Pregnancy and lactation both demand a lot of water. Dehydration can lead to fatigue and may even contribute to Braxton Hicks contractions. Aim for at least 10 to 12 cups of fluid daily.

If you find plain water boring, our Pumpin Punch™ drink can be a refreshing way to stay hydrated while supporting lactation. We recommend speaking with your healthcare provider before adding new supplements to your routine while pregnant.

Important Nutrients to Track

Iron: Your blood volume increases during pregnancy, making iron-rich foods or supplements vital to prevent anemia.
Folic Acid: This is crucial for the neural tube development of your developing baby.
Calcium: If you don't consume enough calcium, your body may pull it from your own bones to provide for the baby and your milk.

Understanding Nursing Aversion

Some mothers experience a phenomenon called "nursing aversion" during pregnancy. This is a sudden, intense feeling of irritation, skin-crawling, or an "unpleasant" sensation when the older child latches.

This is a physical and hormonal response, not a reflection of your love for your child. If you experience this, it is okay to set boundaries. You might try:

Shortening nursing sessions using a timer.
Distracting your child with a book or a snack.
Limiting nursing to specific times of the day, such as before bed.

Taking care of your mental health is just as important as your physical health. If nursing becomes a source of significant stress, weaning might be the healthiest choice for you.

Preparing for Tandem Nursing

Tandem nursing is the practice of breastfeeding two children of different ages at the same time. Many mothers find that continuing to nurse through pregnancy leads naturally into tandem breastfeeding.

Prioritizing the Newborn

Once the new baby arrives, they should always be the priority at the breast. This ensures they receive the colostrum and the high-fat milk they need for rapid growth. Your older child can nurse after the baby is finished.

Managing Supply for Two

The beauty of the human body is that supply is based on demand. Nursing two children will signal your body to produce more milk. This can actually help reduce engorgement in the early days after birth because your older child can help "clear" the extra milk.

Sibling Bonding

Tandem nursing can be a beautiful way for siblings to bond. It reduces the "jealousy" that sometimes occurs when a toddler sees a new baby taking "their" spot at the breast. Instead, it becomes a shared family activity.

Tips for a Comfortable Experience

If you decide to continue your journey, here are a few ways to make it more manageable:

Try New Positions: As your belly grows, traditional positions might become uncomfortable. Side-lying or using a nursing pillow to support your toddler can help.
Get Plenty of Rest: Pregnancy fatigue is real. Don't be afraid to ask for help with chores so you can rest while your child nurses.
Use High-Quality Supplements: If you are worried about your supply, herbal supports may help. Our Pumping Queen™ supplement is formulated to support milk production.

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

Action Steps for Success:

Consult your doctor to confirm your pregnancy is low-risk.

Increase your daily caloric intake by 800–1,000 calories.

Stay hydrated with at least 10–12 cups of water or supportive lactation drinks.

Set boundaries or limits on nursing if you feel pain or aversion.

When to Consider Weaning

While we love to see nursing journeys continue, we also believe that your well-being matters. There are several reasons why you might choose to wean during pregnancy.

Medical Recommendation: If you have signs of preterm labor or other complications, weaning may be necessary for safety.
Physical Exhaustion: If your body feels depleted and you cannot keep up with the nutritional demands, weaning can help you focus on the pregnancy.
Aversion or Pain: If breastfeeding causes you significant distress or nipple pain that does not improve, it is okay to stop.
Natural Weaning: Sometimes the toddler decides to stop on their own. If your supply drops or the taste changes, they might simply lose interest.

If you are thinking about this transition, our weaning guide can help you plan the next steps. Weaning is a transition, not an end to your bond. You can still provide plenty of cuddles, skin-to-skin time, and emotional support without breastfeeding.

Conclusion

Breastfeeding while pregnant is a testament to how amazing your body truly is. It is possible to nourish a growing baby inside while continuing to provide for the child in your arms. By focusing on your nutrition, listening to your body's cues, and seeking support, you can navigate this journey with confidence.

Remember that every drop counts, and whether you nurse for one more day or one more year, you are doing an incredible job. If you need extra support or a little treat to keep you going, our Emergency Lactation Brownies are a delicious way to support your supply while you handle the demands of motherhood.

"You are capable of doing hard things, and your body was created to nourish and sustain. Trust your instincts and give yourself grace."

For more support and resources, check out our Breastfeeding 101 course and join our community of supportive parents who have been exactly where you are.

FAQ

Does breastfeeding while pregnant cause miscarriage?

In a healthy, low-risk pregnancy, there is no evidence that breastfeeding causes miscarriage. The uterus is generally not sensitive to the small amounts of oxytocin released during nursing until late in the pregnancy. If you have a history of pregnancy loss or are at high risk, you should consult your healthcare provider.

Will my milk supply disappear completely during pregnancy?

Most mothers experience a drop in supply around the fourth or fifth month due to hormonal changes. While it may not disappear entirely, it often decreases significantly and transitions into colostrum. This is a normal part of the body's preparation for the new baby. For a deeper look at milk supply changes, see our low milk supply guide.

Is it safe for my toddler to drink colostrum?

Yes, it is perfectly safe for an older child to drink colostrum. It is packed with nutrients and antibodies that are beneficial for children of any age. However, some toddlers might find the change in taste or the thicker consistency unappealing and may nurse less frequently as a result.

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Is It Good to Be Breastfeeding While Pregnant? What to Know

Table of Contents

Introduction

Is Breastfeeding While Pregnant Safe?