If you’re pregnant, then you’ve probably heard of Braxton Hicks contractions. Also known as false labor, these “practice contractions” can kick in long before real labor starts, and they’re a completely normal (if slightly unwelcome) part of pregnancy.
But what do Braxton Hicks contractions feel like, and when do they start? What causes them, and where in your body should you expect to feel them? We’ve combed through the research to answer all of your questions. Plus, as part of our new series exploring the way things feel, we’ve turned to Secret Chats on the Flo app to see what the people in our community are saying about these contractions, too. Let’s get started!
What are Braxton Hicks contractions?
So what exactly are Braxton Hicks contractions? Let’s take a quick biology lesson. In scientific terms, they’re irregular contractions of your uterus, which simply means that your uterus is tightening and then relaxing again. They might feel alarming if you’ve never experienced them in your pregnancy before, but rest assured — they are completely normal. As Mother Nature likes to keep us on our toes, it’s also normal not to experience any Braxton Hicks contractions, so try not to worry if you don’t feel them at all throughout your pregnancy.
Braxton Hicks contractions are a clever way for your body to start preparing for childbirth, by toning the muscles in your uterus and getting your cervix ready for labor. However, they aren’t actually a part of labor itself, and they’re very different from real contractions. Confused? Don’t worry. We’ll learn more about those later in this article.
What causes Braxton Hicks contractions?
Scientists aren’t quite sure why some people experience Braxton Hicks contractions while others don’t. However, experts do agree that the contractions are a sign that your body is getting ready for labor (even if you’ve still got weeks or months left to go in your pregnancy!). So if you’re wondering why you’re having so many Braxton Hicks contractions, don’t panic. Your body is just preparing itself for what’s to come.
While you can’t directly trigger Braxton Hicks contractions to occur, there are a few factors that could contribute to them kicking in. These include:
- Being dehydrated
- Needing to pee
- Being very active
- Having sex
Sound familiar? Some Flo community members have shared the things they believe bring about their Braxton Hicks contractions in the Secret Chats section of the app:
- “I notice them coming on the most […] if I’m overexerting myself or dehydrated, and if my bladder is really full.”
- “I do trigger them more when I move a lot or carry heavy things around.”
- “Almost 34 weeks [pregnant], I experienced my first Braxton Hicks contraction the other night. I overdid it while cleaning, and I think I was dehydrated.”
- “It really hits me when I’m walking a little too fast or even just cleaning around my house. [....] I usually try to push through it, but it does remind me to take a seat. It’s been so hard for me to ‘slow down and take it easy.’ My life has always been go, go, go.”
When do they start?
As every pregnancy is different, there’s no exact science to when Braxton Hicks contractions are likely to start. While researchers believe that the contractions can begin at around six weeks of pregnancy (yes, really!), the earliest you’re likely to feel them is during your second trimester. But they’re actually most common during your third trimester, and they can last right up until the moment that real labor starts.
Let’s hear from some of the people in Secret Chats about when they first started having Braxton Hicks contractions:
- “I have had them since 28 weeks pregnant. I am now 38 weeks, and I get them every day.”
- “34 weeks [pregnant] as of now, having Braxton Hicks every day, several times a day and night.”
- “37 [weeks] + 3 days [pregnant], and [I’ve] been having Braxton Hicks since early on in [the] second trimester, and I’m so over them now. I get them every day and all through the day!”
- “I’m 28 weeks [pregnant] and have been getting them since 23 weeks. I’ve been to hospital three times worrying that I’m in labor. Each time they’ve monitored me and seen big contractions, yet not ‘labor contractions,’ and sent me home since my cervix was unchanged.”
- “I’ve been having Braxton [Hicks] since [I was] 18 weeks pregnant or so! […] I’m 38 [weeks] + 1 [day] now. I get loads of them every day, and [it’s] pretty intense."
So as we can see, there really is no set time for Braxton Hicks contractions to begin, if they occur at all.