How birth trauma, stress, and anxiety can affect your milk supply — and why that is not a personal failing.
She sat across from me and said she felt like a failure.
She wasn’t. Not even a little bit. But I’ve heard some version of that sentence more times than I can count, sitting across from mamas who came to me as a last resort — exhausted, frustrated, and absolutely convinced that their bodies had let them down.
Here’s what I want you to know before we go any further: your body has not let you down. But it is possible that your body is still trying to protect you. And those two things — the protecting and the feeding — can work against each other in ways that nobody warned you about.
When the birth didn’t go the way you planned
I had two C-sections. My body was, as I once wrote about it, slashed open and gutted twice to deliver my babies. I say that not for shock value but because I want you to know that I am not talking to you from some pristine, uncomplicated birth experience. Birth is hard. Sometimes it is frightening. Sometimes it goes sideways in ways that leave a mark — not just on your body but on your nervous system.
I’ve worked with mamas who experienced emergency deliveries, unexpected surgical interventions, prolonged labor, hemorrhage, NICU stays, complications they weren’t prepared for, and moments where they genuinely weren’t sure if they or their baby — or both — were going to be okay.
And then, sometimes just hours later, they were expected to breastfeed.
The audacity of that ask.
What stress actually does to milk supply (the short, non-scary version)
Here’s the science in plain English: breastfeeding runs on two key hormones — prolactin, which signals your body to make milk, and oxytocin, which causes your milk to release (your “let-down”). Oxytocin is sometimes called the love hormone, and it thrives in conditions where you feel safe, calm, and supported.
Stress hormones — primarily cortisol and adrenaline — are essentially oxytocin’s sworn enemies. When your body is in fight-or-flight mode, which is exactly where a traumatic or frightening birth experience can leave you, it prioritizes survival. And survival, in your body’s ancient, well-meaning opinion, does not involve milk production.
This is not a character flaw. This is biology.
Ongoing anxiety, even after the acute event has passed, can keep your nervous system in that same heightened state. I’ve sat with mamas who couldn’t understand why their supply was struggling, and when we talked through what the first weeks had looked like — the worry, the sleeplessness, the fear that something was still wrong — it became very clear that their bodies were still in protection mode.
Stress can also affect feeding frequency and effectiveness. When you’re anxious or overwhelmed, you may not recognize hunger cues as easily, or breastfeeding may feel tense rather than settling — which affects how well the baby transfers milk, which affects supply. It’s a cycle that feeds itself, if you’ll forgive the pun.
Signs this might be what’s going on for you
You might be dealing with stress or trauma-related breastfeeding challenges if you notice:
Your supply was fine at first and then seemed to drop — particularly around a stressful event, a return to work, or during a period of heightened anxiety.
You feel your let-down is inconsistent or seems to disappear when you’re tense, rushed, or in an unfamiliar place.
You feel disconnected during feedings, or you dread them, or you feel a wave of strong negative emotion when you latch your baby — a phenomenon that has an actual name, dysphoric milk ejection reflex (D-MER), and is not your fault either.
Your breasts feel full — genuinely, uncomfortably full — but when you sit down to pump, almost nothing comes out. This one is so discouraging, and I want to address it directly: that is not a supply problem. That is an ejection problem. The milk is there. Your body is just refusing to release it — because a pump is not a baby, and because stress and anxiety can suppress your let-down reflex so completely that even a hospital-grade pump cannot override it. Your body is not broken. It is on high alert. Those are different things, and they require different solutions.
And while we’re at it: if you were in the hospital after your birth and couldn’t hand-express any colostrum, and a well-meaning nurse or provider implied — or said outright — that you might not have enough, I need you to hear this: the colostrum was there. It was almost certainly there. You were in a bright, busy, unfamiliar hospital room, you had just been through the most physically and emotionally intense experience of your life, people kept coming in and handling your body, you were terrified, and your oxytocin had absolutely no interest in cooperating with anyone at that particular moment. Not being able to express colostrum in those conditions is not evidence of inadequate supply. It is evidence that you are a human being whose nervous system was doing exactly what nervous systems do.
You had a difficult birth experience and never felt like breastfeeding got off to a good start — even if everyone kept telling you everything looked fine.
You don’t have to check every box. You don’t have to have an obvious, textbook “traumatic birth” to be affected by this. Sometimes the experience that rearranged your nervous system was quieter than that — and it still counts.
Here is the part where I tell you it can get better
Because it can. That is not a sales pitch. I’ve watched it happen.
The nervous system is not a fixed thing. With the right support — and I mean real support, not just someone handing you a pamphlet and wishing you luck — your body can begin to feel safe enough to do what it was designed to do. Let-down can improve. Supply can respond. Feedings can stop feeling like a battle.
It often takes time, and it sometimes requires a team — a lactation consultant (hi, that’s me) working alongside a therapist or counselor who understands perinatal mental health, or a supportive provider who is actually listening to you. I’m always glad to help connect families with those resources.
What it does not require is you gritting your teeth and pushing through alone. I promise you are not meant to do this alone.
Come see me — in Macon, or wherever you are
I’m a lactation consultant serving Middle Georgia, and I would love to sit down with you — literally or figuratively — and figure out what’s going on.
My new Macon office at 2607 Vineville Avenue is open for consultations on Wednesdays and Thursdays, and I also see families in my Sandersville office and in your home. You can lay down on my couch, or I can sit with you on yours. Because sometimes getting everyone loaded in the car when you haven’t slept in three days is simply not happening, and I completely understand that.
Prenatal consultations are also available — and if you’re pregnant right now and you’ve had a difficult birth before, or you’re already anxious about breastfeeding, please don’t wait until you’re in the thick of it to reach out. We can talk through everything before your baby arrives and make a plan together.
You can reach me by calling or texting (478) 288-8784, or visiting nurturinglc.com to learn more and book a consultation.
You’ve been through something hard. Your body heard it. And your body is still here, still trying, still doing the best it can.
So are you. That counts for a lot.
Leia Giddens is an International Board Certified Lactation Consultant (IBCLC) and the owner of Nurturing Lactation Care, serving families in Macon, Sandersville, and throughout Middle Georgia. She offers in-home visits and office consultations in Macon (Vineville Avenue) and Sandersville.