Breastfeeding Basics: A First-Time Mom's Guide

Here's the thing nobody tells first-time moms about breastfeeding: it's a skill. Not an instinct, not something that just clicks the moment your baby is born. A skill — for you and for your baby, both learning at the same time, often at 3am, both exhausted.

The families I've supported who have the easiest time with breastfeeding aren't the ones with the most determination or the best intentions. They're the ones who understand what's actually happening in their bodies, what's normal, and when to ask for help. That's what this guide is for.

I'm Erin, a COPE-certified birth doula with a lactation certificate from UC San Diego. I've sat with moms through early latch struggles, supply anxiety, and the 2am google spirals. Let's cover what you actually need to know.

How Breastfeeding Works (The Short Version)

Your body starts producing colostrum — a thick, nutrient-dense first milk — during pregnancy, well before your baby arrives. This is what your newborn gets in the first 2–3 days. It comes in small amounts, which is exactly right: a newborn's stomach at birth is roughly the size of a marble.

Around days 3–5, your mature milk "comes in" — breasts become fuller, milk flow increases. This transition is driven by the drop in progesterone after birth, and by your baby's suckling, which stimulates prolactin (milk-making) and oxytocin (milk-releasing).

Getting the Latch Right

Most breastfeeding problems trace back to latch. A shallow latch — where baby is only on the nipple tip — causes sore nipples, poor milk transfer, and frustration for both of you. A deep latch is comfortable and efficient.

Signs of a Good Latch

• Baby's mouth is wide open — like a yawn — before latching
• More areola is visible above the baby's top lip than below the bottom lip (asymmetric latch)
• Baby's chin touches your breast; nose is clear or just barely grazing
• You can hear swallowing, especially after your milk lets down
• You feel a drawing, pulling sensation — not pinching or sharp pain
• Baby's cheeks are rounded, not sucked in

How to Latch

1. Get comfortable first — a pillow under your arm helps. You shouldn't be hunching over your baby; bring baby to the breast, not breast to baby.
2. Hold your breast in a "C-hold" or "U-hold" to offer it, with fingers well behind the areola.
3. Tickle baby's upper lip with your nipple to trigger the wide-open mouth reflex.
4. When baby's mouth opens wide (like a yawn), bring them on quickly, aiming your nipple toward the roof of their mouth.
5. If it hurts immediately, slip your finger in the corner of baby's mouth to break the seal, and try again. One good latch attempt is worth ten painful ones.

Breastfeeding Positions

There's no single "correct" position — the right one is whichever keeps you both comfortable and gives baby a good angle to latch. These are the four most common:

Common Challenges (And What to Do About Them)

Sore Nipples

Some tenderness in the first week is normal. The skin is adapting. But ongoing sharp or burning pain is a signal, not a rite of passage.

• Check the latch first. Most nipple pain is a shallow latch problem. When fixed, pain usually resolves within a day or two.
• Apply a thin layer of nipple cream (lanolin or coconut oil) after feeds. You don't need to wash it off before nursing.
• Let nipples air dry after feeding when possible.
• If pain is shooting, burning, or intensely itchy, rule out thrush — a fungal infection that affects both you and baby and requires treatment.
• If pain is severe from the start or accompanied by cracking and bleeding, see a lactation consultant before assuming it will resolve on its own.

Engorgement

When milk comes in around days 3–5, your breasts may become very full, hard, and uncomfortable. This is normal and temporary — it usually settles within a few days as supply regulates to baby's actual needs.

• Feed frequently — this is not the time to stretch feeds
• If your breasts are so full baby can't latch, hand-express or pump just enough to soften the areola
• Cool compresses between feeds help with discomfort
• Avoid pumping large amounts to relieve engorgement — it sends a "make more milk" signal

Low Milk Supply

True low supply is less common than it's perceived to be — supply anxiety is very common, true supply insufficiency is not. Some signs you may have low supply:

• Baby isn't gaining weight appropriately (less than birth weight by day 5, not back to birth weight by 2 weeks)
• Fewer than 6 wet diapers per day after day 4
• Baby feeds constantly, seems frustrated at breast, and still seems hungry

Things that often feel like low supply but aren't: baby cluster feeding in the evenings (normal), breasts feeling less full after a few weeks (normal — supply is regulating), not being able to pump much (pump output doesn't equal supply).

Blocked Ducts and Mastitis

A blocked duct feels like a tender, hard lump in the breast. It happens when milk isn't draining well from one area. Fix it fast: feed frequently, massage the area toward the nipple during feeds, and apply warm compresses before nursing.

If a blocked duct progresses to mastitis — breast infection with flu-like symptoms (fever, chills, red streaked breast, body aches) — contact your provider. Mastitis usually requires antibiotics. Keep nursing through mastitis; stopping can make it worse.

Pumping Basics

If you're returning to work or want flexibility, pumping is the way to build a freezer stash and maintain supply. A few things to know:

• Get the right flange size. A poorly fitting flange is the most common reason pumping is painful or inefficient. Flanges are sized by nipple diameter — measure or ask a lactation consultant.
• When to start pumping: Most lactation consultants recommend waiting until supply is established (3–4 weeks) before pumping regularly, unless you're exclusively pumping or returning to work sooner.
• Pumping frequency at work: Plan to pump as often as your baby would feed — roughly every 2–3 hours. Skipping sessions reduces supply over time.
• Storing pumped milk: Freshly pumped milk keeps 4 hours at room temperature, 4 days in the refrigerator, and 6 months in a deep freezer (3 months in a standard fridge freezer).
• Pump output vs. supply: Most moms pump significantly less than baby actually takes at breast. If you pump 2oz and worry it's not enough — your baby is likely getting more. The pump is not a reliable measure of supply.

When to Get Help

Breastfeeding support is not a luxury — it's part of maternal healthcare. Reach out to a lactation consultant (IBCLC) if:

• Pain persists beyond the first week despite latch adjustments
• Baby isn't gaining weight well in the first 2 weeks
• You develop symptoms of mastitis (fever, flu-like symptoms, red breast)
• Baby is under 6 wet diapers per day after day 4
• Feeding feels like a constant battle — something is usually fixable
• You suspect a tongue tie or lip tie is affecting latch

Many hospitals have lactation consultants on staff who will see you before discharge — ask before you leave. After discharge, most IBCLCs do home visits or telehealth, and many insurance plans cover lactation support. Use it.