Skip to main content

What *actually* starts labor?

Can We Predict the Start of Labor?

People (me included) say all the time, “Babies come on their own time.” And, this is true, they do. But, they don’t just randomly choose a day. It isn’t luck of the draw or even chance. So if there is something more to it, what *actually* starts labor? Let’s dive a bit deeper!

I know you’ve heard this before if you are not new around here, but your baby’s body and your body literally work together to start labor. They have been working together this whole time during pregnancy and will continue to work throughout birth and as long as you breastfeed. My mama would argue she can still feel when something is off from me (I live in Boston and she’s in Mississippi!) Your mama instinct is so strong. There are so many birthing people who say they feel like an induction isn’t the right choice for them and there’s research to show that you might be right! 

*You’re going to notice that some of these articles seem old. They are old because this isn’t new. This is something we are well aware of in the birth world. 

So, What Starts Labor?

Your baby’s lungs! That’s right, when your baby is ready to be born, their lungs will actually produce a hormone that mixes with your amniotic which triggers labor. “During the last part of your pregnancy, your baby's lungs mature and he or she puts on a protective layer of fat, taking on the characteristic chubbiness of a newborn. Researchers now believe that when a baby is ready for life outside his mother's uterus, his body releases a tiny amount of a substance that signals the mother's hormones to begin labor (Condon, Jeyasuria, Faust, & Mendelson, 2004). In most cases, your labor will begin only when both your body and your baby are ready.”

It’s also super important to remember that in late pregnancy your body is doing tons of work that is unseen. I’m not talking about dilation or effacement--things we can measure. I’m talking about things we can’t/don’t measure for like hormonal changes, the dropping of your baby, or the positioning of your baby’s head (more than facing forward or facing backward). There are so many things that your body does, like your hips and pelvis slowly opening up (an additional 30% in late pregnancy and throughout labor!) to make more space for baby and your breasts beginning to make and store colostrum! Your baby’s hormones will be speaking to your hormones and that will tell your body what to do. “The fetal hypothalamo-pituitary-adrenal axis plays a fundamental role in stimulating increased estrogen production in late gestation. Estrogen then activates maternal circadian rhythms that increase oxytocin secretion. As a result, uterine contraction patterns are switched from contractures to contractions.” (Nathanielsz, 1998) There’s plenty of research out there sharing the importance of your baby’s development in birth and some researchers suggest that answering critical questions about the hypothalamo-pituitary-adrenal axis can be key to reducing the number of preterm births and decrease the number of NICU stays (Wood and Wood, 2016). 

As your baby begins to produce these hormones, your body will begin to respond by prepping itself. This, for many pregnant people, looks like walking around a few centimeters dilated or effaced a bit! Your body is designed to be on the lookout for these signals from your baby! “Oxytocin receptors are probably crucial for the onset of human labor, and the stimulus for the increase in uterine prostaglandins may be oxytocin originating from the fetus.” (Fuchs, Fuchs, Husslein, Soloff, Fernstrom, 1982)

Remember, your baby is a separate being from you, but still dependent on you! They work together, but we shouldn’t force your body to try to control your baby.

So, What about Past Due Babies?

Don’t worry! Nature has that figured out too! We have to keep in mind that birth is a natural event--NOT a medical event. If you think about birth, humans are the only ones who trust other folks to birth their baby, birth in a medical environment, have tons of interventions and procedures “just in case”....If we step back and give nature the space to unfold as it’s intended to do, we can usually trust things to go right. 

So, if your baby isn’t here on your due date (uh hmmm, please remember that first time babies are usually born 40+5 to 41+2), there’s some research to take a look at before making your next move! “They found that changes in telomeres, part of our DNA that responds to aging, become present in the amniotic fluid as the placenta and other pregnancy tissues get older (source). These cells could be telling the baby that it's time to be born. "What made us suspect this signal is that we have always believed that labor can be triggered by the baby,"says lead author Ramkumar Menon, Ph.D., an assistant professor in the department of Obstetrics and Gynecology, and co-author George R. Saade, M.D., a professor and chief of Obstetrics and Maternal Fetal Medicine.”

So while babies will ‘come on their own time,’ they are actually still developing up until that point. We want to make sure we are balancing having a healthy respect for your baby’s growth and development when we talk about due dates and inductions! You can see more information on how your risk of c-section increases if your birth is augmented by way of induction here

The science is very clear what starts labor and that IS the baby’s body communicating to the gestational parent’s body via hormones and secretions that increase oxytocin and estrogen in the parent that then stimulates contractions. 

You can grab a free download to help master your mindset at the end of pregnancy! It can be so hard to patiently await your little one! I hear that 100%, but I also want to remind you to leave a healthy amount of space for your baby to work their magic as they are designed to do! If you want to learn more information to help you have an informed and confident birth, join our waitlist to be the first to know when The Birth Lounge opens again!

Ps. If you want a good birth story and one that empowers you to wait to trust in your baby, read this one

Comments

  1. Hello everyone, I am from Wembley, Britain. I want to write this testimony to tell others and thank Dr. Odunga for what he has done for me. The first 12 years of my marriage I had 5 miscarriages and I was called all sorts of names by my mother-in-law and this made my marriage life very hectic and a burden of sorrow. I contacted Dr. Odunga for help and I will say that he is a very strong and honest man and he indeed helped me solve my problem. I saw his email in a testimony and I contacted him, little did I know it would be the end of all my problems. After 2 days of contact, I received a fertility herb and he told me to use it. The herb worked and my husband even loved me more and bought me expensive things. One afternoon, I went to a nearby hospital and came back home with the positive result of my pregnancy and after 9 months I gave birth to a baby boy. Ever since I contacted Dr. Odunga, my story has been different. I have 3 children at present and I am very happy in my marriage. Please, contact him at odungaspelltemple@gmail. com OR Whats App him +2348167159012 to help you too

    ReplyDelete

Post a Comment

Popular posts from this blog

Vagina Whispering: Everyone's Doing It

Meet The Vagina Whisperer [This is also an episode of Friday Free Talk on The Tranquility Tribe Podcast on iTunes. Listen  here .] Hey Tranquility Tribe!  I’m so excited to bring you this episode of the Tranquility Tribe podcast!  Today, Hehe talked to Sara Reardon, also known as the Vagina Whisperer.  As you may be able to guess from her nickname, Sara is an expert in all things vagina, which means that this episode is full of super essential and often understated topics! Who is the Vagina Whisperer? Sara Reardon is a physical therapist who currently practices in New Orleans.   She specializes in men and women’s pelvic floor health, and she is passionate about speaking up when it comes to treatment and prevention of pelvic health issues.   By bringing humor to the often sensitive topic of staying healthy “down there,” Sara helps to unpack countless vagina-related topics that many women have experience with but few are comfortable talking about.   In addition t

Alcohol in Pregnancy

Alcohol in Pregnancy Today I wanted to chat alcohol and pregnancy. I sometimes see or hear expectant parents make jokes like, 'I wish I could have a glass of wine'. And I just wonder to myself, is this a place for me to say, 'You can'. Actually, the research says that it is okay. Or are these people like truly joking? I feel like this is a discussion we should have. Now I think if we're gonna understand drinking during pregnancy and postpartum, we first have to break down how your body breaks down and absorbs alcohol. And a lot of people have this misconception that you drink alcohol and then it's just zooms to your baby. Or you drink alcohol while you're breastfeeding and your baby just gets a serving of alcohol with the next feed. It's just not like that. You ingest the alcohol and it goes into your digestive system and then it goes into your bloodstream and then your liver is actually going to filter the alcohol. Some alcohol can pass into the p

The Link Between Inductions & C-Sections: What American Women NEED to Know

The Link Between Inductions & C-Sections: What American Women NEED to Know The Backstory Every now and then there’s a partner (of a client) that really imprints on me. To be honest, it’s usually the ones that challenge me. They question everything. Sometimes they even go out and seek their own research to share at our next prenatal. These are my faves. I can see how much they love their spouse. How much they care. How much they want to protect and understand. Sometimes it’s anxiety and sometimes its fear. But, sometimes, and these are the ones that get me , it’s from a place of truly understanding the injustices in our medical system and they are equipping themselves to be an anchored place of support during a very natural event that our society has somehow medicalized. They recognize the essential need to educate and prepare themselves in order to protect their partner. So there I was, sitting in a prenatal with a wonderful couple I had grown to love over the last few