How To Increase Milk Supply Pregnant: Tips and Truths
Posted on February 09, 2026
Posted on February 09, 2026
Finding out you are expecting a new baby while still breastfeeding your older child brings up a whirlwind of emotions. You might feel excitement for the new addition and a deep desire to continue your nursing bond with your current little one. Many parents worry about what pregnancy hormones mean for their milk supply and whether they can keep up with the demands of both babies.
At Milky Mama, we understand the unique challenges of nursing through pregnancy. We are here to provide the clinical expertise and heart-centered support you need during this transition. This article will cover the science behind pregnancy-related supply changes, how to support your body, and what you can realistically expect. Our goal is to empower you with the tools to navigate this journey while keeping your health and your children’s wellness at the center.
When you become pregnant, your body undergoes a massive hormonal shift designed to support the developing fetus. The primary driver of these changes is progesterone. This hormone is essential for maintaining a healthy pregnancy, but it has a specific effect on lactation.
Progesterone naturally suppresses the action of prolactin. Prolactin is the hormone responsible for telling your body to make milk. As progesterone levels rise during the first and second trimesters, most people notice a significant drop in their milk volume. This is a physiological response that happens regardless of how often you nurse or pump.
For many, this drop occurs between the fourth and fifth months of pregnancy. However, some parents notice a decrease as early as the first few weeks after the positive test. Because this change is driven by hormones rather than "supply and demand," the usual methods for boosting supply may work differently than they did before.
The short answer is that it is very difficult to significantly increase milk supply while pregnant due to those rising progesterone levels. In a typical breastfeeding journey, your supply is based on how much milk is removed from the breast. During pregnancy, the hormonal "brakes" are often stronger than the "gas pedal" of frequent nursing.
However, you can take steps to support your body so that your supply remains as stable as possible. While you may not be able to return to your pre-pregnancy volumes, you can optimize your health to ensure your body has the resources it needs.
Key Takeaway: Milk supply drops during pregnancy are primarily hormonal. While you may not see a huge increase in volume, supporting your overall health can help you maintain what you have.
Your body is doing an incredible amount of work right now. You are growing a new human, nourishing an older child, and maintaining your own physical health. This requires a significant increase in calories and specific nutrients.
When you are both pregnant and breastfeeding, your caloric needs can increase by 500 to 800 calories per day. If you aren't eating enough, your body will prioritize the pregnancy first, which can cause your milk supply to dwindle even faster. Focus on nutrient-dense foods that provide sustained energy.
Healthy fats, protein, and complex carbohydrates are your best friends. Oats, flaxseed, and brewer's yeast are traditional ingredients known as galactagogues (substances that may support milk supply). We include these in our Emergency Lactation Brownies to give parents a delicious, easy way to get those extra nutrients.
Hydration is one of the most critical factors in maintaining any milk supply. During pregnancy, your blood volume increases significantly, and your body needs more water than ever to support the placenta and amniotic fluid. When you add breastfeeding to the mix, your fluid requirements skyrocket.
Plain water is great, but electrolytes help your body actually absorb and use that water. If you are struggling with morning sickness, staying hydrated can be even harder. Small, frequent sips of liquids throughout the day are often easier to manage than drinking large amounts at once.
Our Pumpin’ Punch™ options in the lactation drink mixes collection are a popular choice for pregnant and nursing parents. Keeping a bottle of water or a hydration drink nearby during every nursing session is a simple way to stay on top of your needs.
One of the biggest hurdles to nursing while pregnant is nipple tenderness. Increased levels of estrogen and progesterone make the breast tissue and nipples much more sensitive. For some, this sensitivity makes nursing feel uncomfortable or even painful.
If nursing becomes painful, you might naturally start to shorten sessions or nurse less often. This can lead to a further decrease in milk supply. To manage this, ensure your child has a deep, comfortable latch. Even an older toddler might need a "refresher" on latching correctly if your breast shape is changing.
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Around the middle of your pregnancy, your body begins to transition from mature milk back to colostrum. Colostrum is the "liquid gold" that is high in protein and antibodies, perfectly designed for a newborn. It is thicker and has a different taste than mature milk—often saltier or less sweet.
Your older child might notice this change. Some children don't mind the taste and continue nursing happily. Others may decide to self-wean because they don't like the new flavor or the slower flow. Both reactions are completely normal.
It is important to know that nursing your older child will not "use up" the colostrum for the new baby. Your body will continue to produce colostrum throughout the rest of your pregnancy and in the days immediately following birth.
For most healthy pregnancies, breastfeeding is considered perfectly safe. While breastfeeding does cause small releases of oxytocin (the hormone that can cause uterine contractions), these are generally not strong enough to trigger preterm labor in a low-risk pregnancy.
However, there are certain situations where your healthcare provider might recommend weaning or reducing nursing sessions. These include:
Always keep an open line of communication with your doctor or midwife. If you feel strong contractions that don't go away when you stop nursing, or if you have concerns about your specific health history, seek professional advice.
If you plan to continue breastfeeding after the new baby arrives, you are preparing for "tandem nursing." This can be a beautiful way to help your older child adjust to the new sibling. It allows them to feel connected to you during a time of big change.
To prepare, start setting some gentle boundaries now. If your supply is low and your child is "dry nursing" (sucking when little to no milk is present), you might feel "touched out" or agitated. It is okay to limit nursing sessions to specific times of day or use a timer to let your child know when the session will end.
Building these habits now will make it easier to balance the needs of a newborn and a toddler later. Remember, your well-being is just as important as the nutrition of your children. A happy, well-rested parent is the best support a baby can have.
Navigating milk supply issues while pregnant can feel lonely, but you don't have to do it by yourself. Certified Lactation Consultants (IBCLCs) are trained to help with these exact scenarios. They can help you create a plan that supports your pregnancy while honoring your breastfeeding goals.
At Milky Mama, we offer virtual consultations and a supportive community where you can ask questions and share your experiences. Whether you need advice on supplements like our Lady Leche™ supplement or just need someone to tell you that you're doing a great job, we are here for you.
Key Takeaway: You are essentially running a marathon every day. Be kind to yourself, prioritize your nutrition, and don't be afraid to ask for help from professionals.
If you want to maintain your milk supply as much as possible while pregnant, focus on these three pillars:
For more guidance on how pregnancy can affect feeding, our support guide on milk supply during pregnancy walks through the same transition in more detail.
Increasing milk supply while pregnant is a unique challenge because your body is following a biological blueprint to prioritize the new pregnancy. While you may see a drop in volume due to hormonal shifts, you can still have a successful and fulfilling nursing journey. By focusing on your nutrition, staying hydrated with drinks like our lactation drink mixes, and managing your expectations, you can navigate these months with confidence.
You’re doing an amazing job. Whether you nurse all the way through your pregnancy or decide to wean, the love and care you provide your children are what matter most. We are proud to be a part of your village.
A drop in milk supply is one of the earliest signs of pregnancy for many nursing parents. This happens because progesterone levels rise to support the pregnancy, which naturally inhibits the production of milk. This change is hormonal and usually cannot be reversed by increased pumping or nursing.
Some herbs used in lactation supplements are not recommended during pregnancy, while others are considered safe. Always consult with your healthcare provider before starting any new supplement, including our lactation supplements collection, to ensure they fit your specific health profile.
If your child is over one year old, they likely get most of their nutrition from solid foods, so a dip in milk supply is generally not a health risk. However, if your nursing baby is under one year, you must work closely with a pediatrician to ensure they are gaining weight. You may need to supplement with formula or donor milk to meet their nutritional requirements.
Yes, the taste usually changes around the second trimester as the milk transitions into colostrum. Colostrum is higher in sodium and lower in lactose, which can give the milk a saltier, less sweet flavor. Some children may notice this change and choose to nurse less or wean on their own.
This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice. These statements have not been evaluated by the Food and Drug Administration.