Understanding Antenatal Colostrum Harvesting: A Guide for Expecting Parents

If you’re pregnant and planning to breastfeed, you may have heard the term antenatal colostrum harvesting—but not fully understood what it means or why it matters. The truth is, this simple practice can offer meaningful benefits for both you and your baby.

In this post, we’ll explore what colostrum is, why harvesting it before birth can be helpful, how to do it safely, and what the long-term benefits might be. Whether you're a first-time mum or expanding your family, learning about colostrum harvesting can help you feel more prepared and confident as you approach birth and breastfeeding.

What Is Colostrum?

Colostrum is the very first milk your body produces during pregnancy and the early days after birth. Often called “liquid gold” for its thick, golden-yellow appearance and powerful benefits, colostrum is packed with:

• Immunoglobulins (especially IgA)

• Antimicrobial proteins like lactoferrin and lysozyme

• Vitamins and minerals (A, E, K)

• Healthy fats and proteins

  
  

Colostrum plays a vital role in protecting your newborn from infections, supporting gut health, and laying the foundation for healthy growth in those crucial early days.

Why Consider Harvesting Colostrum Before Birth?

Colostrum harvesting simply means collecting small amounts of this early milk during pregnancy—typically by hand expression—and storing it for use after your baby is born. Here’s why it can be especially helpful:

• Support if breastfeeding is delayed: If you're recovering from a cesarean birth, managing gestational diabetes, or facing other challenges, having colostrum ready ensures your baby gets vital nutrients even if breastfeeding doesn’t begin right away.

  
  

• Peace of mind for mums: Around 1 in 4 new mums experience early breastfeeding issues like latching difficulties or delayed milk supply. Having a stash of your own colostrum can relieve stress during this adjustment period.

  
  

• Practice makes confidence: Learning to hand express during pregnancy helps you feel more comfortable with your body and boosts confidence for managing breastfeeding challenges later (like engorgement or separation from your baby).

  
  

When Should You Start Harvesting?

Most healthcare providers recommend starting colostrum expression at around 36 weeks of pregnancy, as this is when your breasts are naturally preparing for birth and milk production.

Important: Always check with your midwife, doctor, or lactation consultant before beginning. Antenatal expression may not be suitable for everyone—especially if you're at risk for preterm labour or have certain medical conditions.

How to Harvest Colostrum: A Step-by-Step Guide

Colostrum harvesting doesn’t require special equipment, just clean hands and a bit of patience. Here’s how to do it safely:

Step 1: Preparation

• Wash your hands thoroughly with soap and water.

• Gather clean, sterile containers (like syringes or collection cups—often provided by your midwife or pharmacy).

• Choose a warm, comfortable space. Many mums find it easiest after a shower or while resting in bed.

  
  

Step 2: Breast Massage

• Gently massage your breasts in a circular motion, moving from the outer areas toward the nipple.

• Applying a warm compress can help encourage milk flow.

  
  

Step 3: Hand Expression

• Place your thumb and forefinger in a "C" shape about 2–3 cm behind your nipple.

• Gently press inward toward your chest, then squeeze and release in a slow, rhythmic motion.

• Rotate your fingers around the nipple area to express from different ducts.

• Avoid sliding your fingers along the skin or pinching the nipple—gentle pressure works best.

  
  

Step 4: Collect the Drops

• Colostrum may appear as thick, sticky drops.

• Use a sterile syringe or clean container to collect the drops as they form.

• If using a syringe, gently draw them up one by one.

  
  

Step 5: Store Safely

• Label each container with the date and time.

• Store colostrum in the fridge for up to 48 hours or freeze for up to 6 months.

• Ask your midwife or care provider how to safely transport it to the hospital when you go into labour.

  
  

Note: It’s completely normal to collect only a few drops at first. Some people may not express anything right away, and that’s okay. Practicing gently a few times a week can help.

Stop if you feel pain, cramping, or uterine tightening, and speak with your healthcare provider before continuing.

Benefits for Babies

Immune Protection

Colostrum is full of antibodies and protective proteins that help shield newborns from infections. Babies who receive early colostrum are less likely to develop gastrointestinal infections and diarrhoea. In preterm infants, even small amounts of oral colostrum have been shown to support gut health and reduce the risk of conditions like necrotizing enterocolitis.

Nutritional Head Start

Colostrum provides concentrated nutrition tailored to your baby’s needs: rich in protein, vitamins, and healthy fats, and gentle on an immature digestive system.

Gut Microbiome Support

Colostrum contains prebiotic components, including human milk oligosaccharides (HMOs), which help grow beneficial gut bacteria. This early exposure supports gut maturation and may lower the risk of digestive problems or allergies later in life.

Long-Term Benefits of Antenatal Colostrum Harvesting

The benefits of harvesting colostrum go beyond the newborn period:

Improved Breastfeeding Outcomes

Mothers who harvest colostrum antenatally may be more likely to establish breastfeeding successfully after birth. Some studies suggest they are up to three times more likely to initiate and maintain breastfeeding.

Reduced Risk of Allergies

Early exposure to colostrum may help reduce the likelihood of developing allergies or asthma later in childhood.

Bonding and Connection

Starting early with colostrum expression can enhance your sense of connection with your baby and help lay the groundwork for a positive breastfeeding relationship.

Final Thoughts

Embracing the Practice

Antenatal colostrum harvesting is a simple, empowering step you can take during late pregnancy to support your baby’s health and your own breastfeeding journey. With guidance and practice, it can help reduce stress, improve readiness, and offer peace of mind.

Speak with your midwife or healthcare provider about whether colostrum harvesting is right for you, and how to get started safely. Every drop truly makes a difference.

At Nest and Nurture, we offer tailored 1:1 lactation support as part of our antenatal courses. Whether you're learning to hand express for the first time or want personalised guidance around breastfeeding, our team is here to support you every step of the way.

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