The First 7 Days with Your Newborn

You did it! You grew a baby, you delivered a baby, and now your making milk for a baby! The first week with a newborn is magical and messy all at the same time, and whether you're scrolling this at 2am with a baby on your chest or prepping for your due date, here's what to expect in the first seven days. 

What is Cluster Feeding? 

Your baby's stomach is tiny about the size of a marble. On day one it holds about 5–7 ml and this is why feeding feels constant. It is. And that's completely normal. 

Cluster feeding is when your baby nurses frequently in short, back-to-back sessions to fuel rapid growth. Those marathon on-and-off sessions that go for hours? Completely normal, healthy, and not a sign your milk isn't enough! It's actually your baby sending direct signals to your body that say "keep it coming!" Cluster feeding typically peaks around days 2–4 and again at the two-week mark, and growth spurts throughout the first six months will bring more of the same. Every single time, it's your baby and your body doing exactly what they're designed to do. 

Will I Have Milk Right Away? 

Colostrum is your baby's first superfood; thick, golden, and packed with immune-boosting goodness. Even if it looks like just a few drops, it's exactly what your newborn needs. Colostrum is your baby’s first milk and as your milk transitions around days 3–5, baby will get fuller and feeding will feel more rhythmic. 

If you plan to pump, whether to build a stash, relieve engorgement, or because your baby has latch challenges — having a trusted, hospital-strength pump from day one matters. The Spectra S1 or S2 breast pump is a go-to for new moms because it closely mimics a baby's natural nursing pattern with customizable suction and cycle settings, protecting your supply right from the start. The S1 has a built-in rechargeable battery and nightlight, perfect for those middle-of-the-night sessions (a.k.a. MOTNS). 

Skin-to-Skin Is Magic  

If you do nothing else in the first week, do this: hold your baby skin-to-skin as often as possible. Chest to chest, heart to heart because the benefits are real.  

Skin-to-skin contact helps stabilize your baby's heart rate, temperature, and blood sugar, while triggering the release of oxytocin (the love hormone) in both of you. It also supports breastfeeding by encouraging baby's feeding cues and boosting your milk supply. Partners can do it too — and should!  

Skin-to-skin never ends. Your baby spent nine months snuggled inside you. Recreating that closeness in the early days isn't spoiling; it's normal and healthy. It's biology. 

Track Those Diapers  

Here's the thing about newborn diapers — they're actually your best clue that everything is going well. 

In the first days, expect meconium: that dark, sticky, tar-like first poop that baby passes within the first 24 hours. By days 3–4, as you make mature milk stools will transition to a seedy, mustard-yellow color (exclusively breastfed babies) or tan/brown (formula-fed). By the end of week one, aim for 6+ wet diapers and 3–4 soiled diapers per 24 hours as a sign your baby is getting enough milk. There are tons of free apps for this, or the classic pen and notebook method works just fine. 

Some weight loss in the first few days is completely normal, but a loss greater than 7–10% of birth weight is a red flag. Your pediatrician will monitor this at the newborn visit, but keeping up with frequent feedings is the best thing you can do to support healthy weight gain. Most babies regain their birth weight by 10–14 days. 

You Will Most Definitely Miss Sleep  

Newborns sleep 16–18 hours a day, just not in one stretch. Most sleep in 2–4-hour windows, waking to feed, be changed, or just because they're babies! There's no schedule yet, and there doesn't need to be. Your baby's circadian rhythm won't kick in until around 6–12 weeks, so survival mode is a perfectly valid parenting strategy right now. 

Sleep when the baby sleeps is advice you've heard a thousand times and it's still true. Accept every offer of help. Lower every bar for yourself. The dishes can wait. 

And while we're here - if you're feeling weepy, overwhelmed, or like the emotions are coming in waves, that's completely normal in the first week. Your hormones are doing a dramatic nosedive post-delivery. This is often called the "baby blues" and typically peaks around days 3–5. If those feelings persist or intensify beyond two weeks, please reach out to your provider. Postpartum mood disorders are common, treatable, and nothing to push through alone. You can find immediate help HERE. 

Spectra Is Here For YOU! 

The first seven days are a crash course in everything. Your body is healing, your baby is adjusting, and you're both figuring each other out. Follow your instincts, and know that asking for help from a friend, your partner, or a lactation consultant — is always the right move. 

Have breastfeeding questions? The Spectra Baby USA IBCLC team is available to support you at every stage of your journey. Schedule a complimentary consultation or email us at IBCLC@spectrababyusa.com. 

You're doing an incredible job. We believe in you — and we're here every step of the way.  

By Melissa Portunato MA, IBCLC 

ABM Source: 

Kellams, A., Harrel, C., Omage, S., Gregory, C., & Rosen-Carole, C. (2017). ABM clinical protocol #3: Supplementary feedings in the healthy term breastfed neonate, revised 2017. Breastfeeding Medicine, 12(3), 188–198. https://doi.org/10.1089/bfm.2017.29038.ajk 

AAP Source: 

Meek, J. Y., & Noble, L. (2022). Policy statement: Breastfeeding and the use of human milk. Pediatrics, 150(1), e2022057988. https://doi.org/10.1542/peds.2022-057988