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Feeding0โ€“12 monthsFrom Kelly

Breastfeeding: What I Wish I Knew

KM

Written by Kelly Miller

Breastfeeding is a learned skill โ€” for you and for your baby. The knowledge gap is the biggest obstacle. I put this guide together so you can go in prepared, not scrambling.

1. Learn before you give birth

Take a real breastfeeding course before birth โ€” not a quick overview. The early postpartum period is not a good time to learn fundamentals from scratch. Key things to understand ahead of time:

How milk supply works

Supply is driven entirely by demand. The more your baby feeds (or you pump), the more milk your body makes. Early cluster feeding is not a sign of low supply โ€” it's your baby signaling your body to produce more.

How latch works

A good latch is deep and asymmetric โ€” the whole areola goes in, not just the nipple. A shallow latch causes pain and reduces milk transfer. This is a skill that takes practice and is much easier to troubleshoot when you already know what you're aiming for.

Newborn stomach size

A newborn's stomach on day 1 is roughly the size of a marble. By day 3, a walnut. By week 1, a golf ball. Colostrum volume is calibrated to this โ€” it's the right amount, even when it doesn't feel like it.

Hunger cues before crying

Crying is a late hunger cue. Earlier signals: rooting, hand-to-mouth movement, lip smacking, restlessness. Responding to early cues makes feeding easier for both of you.

Recommended: The Thompson Method course. Evidence-based, thorough on mechanics, and more useful than most generic breastfeeding classes. More on this in Section 7.

2. Know your nipple anatomy before birth

Flat or inverted nipples are common and can make latching significantly harder. Knowing ahead of time gives you options.

How to check

Gently compress the areola about an inch behind the nipple. If the nipple protrudes, it's everted. If it stays flat or retracts inward, you likely have flat or inverted nipples.

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Talk to your midwife or care provider about it before birth

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Look into nipple formers (Haakaa or similar) โ€” worn during pregnancy to encourage eversion

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Pumping briefly before a feed can help draw out flat nipples before baby latches

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This is one reason having a knowledgeable LC matters โ€” they can help you troubleshoot before and after birth

Nipple shields can be a useful tool in the early days for flat or inverted nipples. They come with their own considerations (milk transfer, eventually weaning off them) โ€” worth discussing with your LC ahead of time rather than introducing them in a crisis.

3. Prepare your body before birth

Breast massage and lymph drainage

Your lymph system drains through the armpits, clavicle, and sides of the ribs โ€” all connected to breast tissue. Supporting this drainage before birth helps prevent engorgement and blocked ducts when milk comes in.

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Gentle breast massage from outer edges in toward the nipple

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Lymph strokes from the breast toward the armpit

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Clavicle and side-of-rib massage to open drainage channels

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Start in the third trimester; continue postpartum, especially in days 3โ€“7 when milk volume increases rapidly

Bodywork during pregnancy

A massage therapist or bodyworker trained in breast massage and lymphatic drainage can be worth seeing in the third trimester. Not all practitioners offer this โ€” look specifically for someone with breast/lymph training. Gua sha and dry brushing on the chest and sides are also useful practices to start before birth.

Your anatomy will change postpartum

Breast size and shape shifts significantly as milk comes in. A pump flange that fits on day 2 may not fit correctly by day 5. Reassess fit as your body adjusts โ€” wrong flange sizing is a common, easily fixed cause of pain and low output.

4. Build your support team carefully

Not all lactation consultants are equally trained, and advice from different providers often contradicts. Going in with your own knowledge base helps you evaluate what you're hearing.

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IBCLCs vs. general LCs

An IBCLC (International Board Certified Lactation Consultant) has more hours of training than a general LC or CLC. If you're dealing with a specific challenge โ€” flat nipples, low supply, pain โ€” an IBCLC is worth seeking out.

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Interview your LC before birth

Useful questions: What's your approach to flat or inverted nipples? How do you handle low supply concerns in the first week? Are you familiar with the Thompson Method? What's your position on nipple shields? Knowing their philosophy before you're in a vulnerable moment matters.

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Schedule check-ins in advance

Aim for: a check-in around day 2โ€“3 (as milk transitions in), day 5 (weight check, latch assessment), and week 2. Have these booked before you give birth if possible โ€” not something to sort out while sleep-deprived.

Conflicting advice is normal in this field. The more prepared you are, the better you can filter what you receive and make decisions that fit your situation.

5. The first 72 hours

The first three days set the foundation for milk supply and latch. Key things to know:

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Skin-to-skin immediately after birth

Skin-to-skin contact after birth triggers milk-making hormones, regulates baby's temperature, and activates the latch instinct. Prioritize it regardless of birth setting.

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Colostrum is enough

You'll produce drops โ€” not ounces โ€” in the first 24โ€“48 hours. This is normal and correct. Colostrum is dense and calibrated to a newborn's stomach size. Cluster feeding in these early hours drives supply up, not a sign that something is wrong.

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Milk coming in (day 2โ€“5)

The transition from colostrum to mature milk can happen fast โ€” sudden fullness, firmness, and discomfort. This is when lymph drainage and breast massage become especially important. Untreated engorgement can escalate quickly.

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Who supports you matters

Think ahead about who will be with you in those first hours and days. Whether a partner, family member, doula, or your midwife โ€” having someone knowledgeable about breastfeeding present in the early feeds makes a real difference. Talk to whoever will be there about what support looks like.

6. Practical things nobody tells you

Flange sizing

The flange (the funnel part of your pump) needs to fit your nipple, not your areola. Most pumps come with 24mm or 27mm โ€” many women need smaller. Your nipple should move freely in the tunnel without the surrounding tissue being pulled in. Get measured before or shortly after birth. Wrong flange size causes pain, reduces output, and can damage tissue.

Pump quality

Hospital-grade pumps are meaningfully more effective for establishing supply, especially if baby isn't latching well in the early days. Consider renting one for the first few weeks if you need to pump to build supply. Check what your insurance covers โ€” many policies include a pump.

Donor milk and syringe feeding

If your baby needs supplementation, donor milk is an option many people don't know about. It's available through certified milk banks and community networks โ€” ask your midwife or care provider.

Syringe feeding (offering milk via a small oral syringe at the corner of the mouth) can supplement without introducing bottle nipple confusion in the early days when latch is still being established. Ask your LC about this before defaulting to a bottle.

Reassess as your body changes

What works on day 3 may not work on day 10. Flange fit, feeding positions, latch depth โ€” these may all need adjusting as your anatomy shifts. This is normal, not failure.

7. Finding your approach

Breastfeeding has more competing advice and strong opinions than most areas of early parenting. You'll get conflicting guidance from well-credentialed people. That's normal โ€” and it means your own education matters.

On the Thompson Method

Dr. Robyn Thompson's approach is evidence-based and covers latch mechanics in more depth than most resources. It addresses flat and inverted nipples specifically, goes deep on positioning, and provides a framework for troubleshooting. We have a full Thompson Method reference in the Course Notes section. It's worth treating this as your primary breastfeeding education, not as one option among many.

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Do your research before birth, not in the middle of it

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Know your own anatomy โ€” don't assume everything is standard

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Interview your support team before you need them

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What works for one mother may not work for you

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If something feels wrong, keep asking until you get a useful answer

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How you feed your baby is not a moral category. Fed, supported, and connected is what matters.

Related Guide

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Thompson Method Breastfeeding Guide

Full reference covering Dr. Robyn Thompson's approach โ€” latch, positioning, supply building, and the science behind it.

I put this together because I wish I'd had it. Use whatever's useful, ignore what isn't.

โ€” Kelly Miller