Supporting Your Journey: How to Increase Milk Supply in Pregnancy
Posted on February 09, 2026
Posted on February 09, 2026
Imagine you are sitting on the bathroom floor, staring at those two unmistakable pink lines. Your heart is racing with a mix of excitement and the slight panic that comes with any major life change. Just outside the door, you hear the pitter-patter of little feet—your toddler, who is still very much attached to your breast and relies on nursing for comfort, connection, and nutrition. Suddenly, a wave of questions hits you: Is it safe to keep going? What happens to my milk? How can I ensure I have enough for my firstborn while growing my second?
If you are currently breastfeeding and find yourself expecting again, you are navigating a unique and beautiful path known as pregnancy-lactation overlap. Whether you plan to continue until birth or are considering tandem nursing (feeding both a newborn and an older child), your body is doing something truly extraordinary. However, one of the most common concerns we hear from moms in this position is how to maintain or increase milk supply.
In this post, we will explore the biological changes that occur when pregnancy and breastfeeding collide, the safety of nursing while pregnant, and practical, evidence-based strategies to support your milk production. We will also dive into nutrition, hydration, and the emotional complexities of this journey. Our goal is to empower you with the knowledge that while your supply may change, your ability to nourish and bond with your children remains steadfast. After all, breasts were literally created to feed human babies, and you’re doing an amazing job navigating this double-duty season.
The short answer is: for most healthy, low-risk pregnancies, yes. It is a common myth that breastfeeding "robs" the developing fetus of nutrients or that the oxytocin released during a letdown will trigger premature labor. Let’s look at what the science actually tells us.
While it is true that oxytocin is the hormone responsible for both milk letdown and uterine contractions, the uterus is incredibly smart. For the majority of your pregnancy, the uterus has a very low number of oxytocin receptors. It isn't until the very end of the third trimester that these receptors increase significantly, making the uterus more sensitive to the hormone. Furthermore, your body produces progesterone during pregnancy, which acts as a natural "blocker" to keep the uterus quiet.
Research, including a comparative study from 2012, has shown no significant difference in full-term birth rates or newborn birth weights between mothers who breastfed during pregnancy and those who did not. Nature is resilient; throughout history, women have breastfed older children while pregnant with the next.
However, we always advocate for "safety first." If you have a history of preterm labor, are expecting multiples, or have been advised to abstain from sexual intercourse (which also releases oxytocin), it is important to have a conversation with a breastfeeding-friendly healthcare provider. Every journey is unique, and getting personalized virtual lactation consultations can provide the specific guidance you need for your situation.
Before we discuss how to increase milk supply in pregnancy, we have to talk about the "pregnancy drop." It is important to set realistic expectations: around the fourth or fifth month of pregnancy (and sometimes much earlier), most women notice a significant decrease in their milk volume.
This drop isn't usually caused by a lack of demand or poor nutrition; it is driven by hormones. The high levels of estrogen and progesterone required to maintain a healthy pregnancy naturally suppress the production of prolactin, the hormone responsible for making milk. Additionally, around the midpoint of pregnancy, your milk begins to transition back into colostrum. Colostrum is thick, concentrated, and produced in smaller quantities, perfectly designed for a newborn’s tiny stomach.
Because this change is hormonal, the traditional "supply and demand" rules of breastfeeding don't always apply the same way. When you aren't pregnant, pumping more often or nursing more frequently usually signals the body to make more milk. During pregnancy, your body may not respond as robustly to those signals because the "pregnancy hormones" are currently in the driver's seat.
But don't lose heart! While you might not be able to force your body to produce "non-pregnant" levels of milk, you can certainly support your supply and ensure that what you are producing is as nutrient-dense as possible.
When you are pregnant and breastfeeding, your nutritional needs are at an all-time high. You are essentially fueling three people: yourself, your growing fetus, and your nursing child. This is not the time for restrictive dieting; it is a time for nutrient density.
Breastfeeding alone burns about 500 calories a day. When you add the caloric demands of pregnancy, you may need to increase your intake significantly. During the first six months of breastfeeding, it's generally recommended to consume an extra 330 to 500 calories per day. When pregnant, you'll need an additional 300-450 calories depending on your trimester. Focus on "power snacks" that combine protein, healthy fats, and complex carbohydrates.
Our Emergency Brownies are a fan favorite for a reason—they are a delicious way to get in some extra calories while supporting lactation with ingredients like flax and oats.
Hydration is one of the most critical factors in maintaining any milk supply, but it becomes even more vital during pregnancy when your blood volume is expanding. Dehydration can lead to a drop in supply and can even cause Braxton Hicks contractions to feel more intense.
If plain water feels "boring" or if pregnancy-related nausea makes it hard to gulp down, try focusing on electrolytes. Electrolytes help your body actually use the water you drink. Our lactation drinks, such as Pumpin Punch™ and Milky Melon™, are specifically designed to provide hydration and lactation support in one refreshing package.
Tip: If you're struggling with morning sickness, try sipping on Lactation LeMOOnade™ throughout the day. The tartness can often help settle a queasy stomach while keeping you hydrated.
When searching for how to increase milk supply in pregnancy, many moms turn to herbal supplements. However, this is an area where you must be extremely cautious. Many herbs commonly found in lactation supplements are not recommended for use during pregnancy because they may stimulate the uterus or affect hormone levels in ways that aren't ideal for a developing fetus.
At Milky Mama, we prioritize safety and education. We offer several supplements that are crafted with care. However, it is a strict requirement to always consult with your healthcare provider before starting any new herbal regimen while pregnant.
Some of our targeted supplements include:
Important Note: This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice before using any supplements during pregnancy.
While hormones are the primary factor, your actions still matter. Here are some practical steps to keep your supply as robust as possible:
Even if your supply is dipping, continuing to nurse or pump tells your body that the demand is still there. If your older child is still nursing frequently, they are doing the work for you. If they are starting to self-wean due to the change in taste or flow, you might consider a few short pumping sessions to maintain stimulation.
Pregnancy can cause nipple sensitivity (thanks, hormones!). If nursing becomes painful, it’s easy to start dreading it, which can inhibit your letdown. Ensure your older child is still achieving a deep, comfortable latch. If you're struggling, don't hesitate to reach out for help. Our online breastfeeding classes can be a great refresher on positioning and latch techniques, even for experienced moms.
Before and during nursing or pumping, try gentle breast massage. This helps move the milk through the ducts and can ensure the breast is being emptied more effectively. Since your milk is transitioning to a more "colostrum-like" state, it may be thicker and move more slowly. Compression helps "push" that liquid gold along.
We often think of skin-to-skin as something only for newborns, but it works for older babies and toddlers too! Snuggling skin-to-skin with your nursing child releases a natural surge of oxytocin, which is the key to the milk ejection reflex. Plus, it’s a wonderful way to reassure your older child that they are still your "baby" even as your belly grows.
We want to be real with you: breastfeeding while pregnant isn't always easy. Beyond the supply drop, there are two common hurdles many moms face.
For many, one of the first signs of pregnancy is extreme nipple tenderness. Nursing through this can feel like someone is using sandpaper on your skin.
Some moms experience a phenomenon called "nursing aversion" during pregnancy. It’s an intense feeling of irritability, skin-crawling, or a "get off me" sensation when the child latches. It is a biological response that can be very upsetting for moms who love breastfeeding.
If your goal is to continue breastfeeding through the birth of your new baby, you are preparing for tandem nursing. This is a beautiful way to help an older sibling adjust to a new arrival.
As mentioned, your milk will change to colostrum. Some toddlers don't mind the change in flavor (it becomes saltier and less sweet), while others may decide they're finished. Every drop counts, and if your toddler continues to nurse, they are getting incredible immunological benefits from that colostrum.
One thing to note: Colostrum has a mild laxative effect. Don't be surprised if your nursing toddler has slightly looser stools during this time—it's just the "liquid gold" doing its job!
Once the new baby arrives, your milk will "come in" again, usually within 3-5 days. Many tandem-nursing moms find that they have a very generous supply because they have two "customers" stimulating production. In those early days, always ensure the newborn nurses first to ensure they get the colostrum and high-fat milk they need. Your older child can then help "soften" the breasts if you are experiencing engorgement.
Breastfeeding is natural, but it doesn't always come naturally—especially when you're doing it while pregnant. You deserve a community that understands the unique challenges you're facing.
We invite you to join The Official Milky Mama Lactation Support Group on Facebook. It is a safe, inclusive space where you can connect with other moms who are tandem nursing or breastfeeding through pregnancy. Sometimes, just hearing "I've been there, and it gets better" is the best medicine.
For more structured learning, our Breastfeeding 101 class is an excellent resource to prepare for the arrival of your newest addition while continuing your current journey.
Let’s look at a few common scenarios moms experience when trying to support their supply during pregnancy.
Sarah is 20 weeks pregnant and her 18-month-old still wants to nurse four times a day. Sarah feels like she has no milk left. She’s worried her toddler isn't getting anything.
Maya is 12 weeks pregnant and her 10-month-old has suddenly started pulling away and crying during feeds. Maya is heartbroken and wants to increase her supply to win him back.
Throughout this journey, remember your mantra: Every drop counts. Whether you are producing ounces or just a few teaspoons of colostrum, you are giving your child a gift of health and heart.
The pressure to "do it all" as a mom is intense. You are already doing the incredible work of growing a human being. If you continue to breastfeed, that is a wonderful bonus. If you find that the supply drop or the physical toll of pregnancy makes weaning the right choice for your family, that is also a valid and loving decision. Your well-being matters just as much as the nutrition of your children.
Increasing or maintaining milk supply in pregnancy requires a multifaceted approach:
1. Can I take lactation supplements while I’m pregnant? Yes, many moms find success with supplements during pregnancy, but you must choose carefully. Avoid any products containing herbs that are contraindicated in pregnancy. At Milky Mama, we offer several fenugreek-free options. However, because every pregnancy is different, you must consult your OB-GYN or midwife before starting any supplement to ensure it is safe for your specific health history.
2. Will my toddler "eat all the colostrum" so there’s none left for the newborn? This is a very common worry! The wonderful thing about the human body is that colostrum is produced continuously during the later stages of pregnancy and the first few days after birth. Your older child cannot "run out" the supply. In fact, having an older child nurse can sometimes help your milk come in faster after delivery.
3. Does nursing while pregnant cause miscarriage? For women with a healthy, low-risk pregnancy, there is no evidence that breastfeeding causes miscarriage. The body has protective mechanisms (like progesterone and a low number of uterine oxytocin receptors) that prevent breastfeeding from triggering labor prematurely. If you have specific concerns or a history of high-risk pregnancy, always follow the advice of your healthcare provider.
4. Why does my milk taste different now that I'm pregnant? As your body transitions toward making colostrum for the new baby, the sodium and chloride levels in your milk increase while lactose (milk sugar) decreases. This makes the milk taste saltier and less sweet. Some older children don't mind at all, while others may choose to nurse less or wean because of the flavor change.
Whether you are just beginning your pregnancy or are nearing your due date, know that Milky Mama is here to support you every step of the way. Breastfeeding through pregnancy is a testament to your strength and your body’s amazing capabilities.
If you're looking for extra support, we invite you to explore our full collection of lactation snacks or book a virtual consultation with our experts. And don't forget to follow us on Instagram for daily tips, encouragement, and a community that celebrates every stage of the breastfeeding journey.
You’ve got this, Mama. You are nourishing the future, and we are so proud to be a part of your story.
Disclaimer: This information is for educational purposes only and is not intended as medical advice. These products are not intended to diagnose, treat, cure, or prevent any disease. Always consult with your healthcare provider or a certified lactation consultant before making changes to your diet, starting supplements, or if you have concerns about your health or the health of your baby during pregnancy.