Let’s start by stating the obvious: You don’t want to be Seth Meyers and help deliver your baby in the lobby of your building. And while there’s no hard-and-fast rule on how long labor can last, or how long it takes until she’s fully dilated and ready to push, contraction timers can at least give you some idea of how things are progressing. Contraction timer apps work by telling you the length and frequency of contractions, and the interval between each one. Some even indicate when it might be time to head to the hospital.
“People have always timed contractions, but [contraction timers are] a simplified way to do that,” says Dr. Sidney Wu, a doctor of obstetrics and gynecology at New York’s Weill Cornell Medicine. The apps “can be helpful as an adjunct. Are they necessary? No. But they’re not harmful. I would caution people to of course to use their own judgment and not just go according to what the app says. Use your common sense. Call your doctor. Everyone’s labor is different. The apps can be helpful and provide general guidance.”
Early labor can last a while. That’s why Wu says it’s important not to go to the hospital too early. You’ll either be sent home or Mom will be stuck in a hospital bed for way too long. “Stay at home until you’re really uncomfortable,” Wu says. A good rule of thumb is to call the doctor when contractions follow what Wu calls “The 5-1-1 Rule”: they’re every five minutes, lasting one minute, and have been going on for one hour.
If this isn’t your first baby, be prepared to head to the hospital earlier in the process. “After you’ve had your first baby, the body is much more efficient,” says Wu, “so call earlier because the baby can come much faster.”
Available for both Apple and Android devices (including the Apple Watch), Full Term is one of the most popular and highly rated contraction timer apps out there. The super-simple interface has a giant bright green start button, so even the least tech-savvy out there can figure out how to use it. You time each contraction, and the app keeps track of the duration and frequency over the previous one hour up to the last six hours. The app also offers kick counter and weight tracking tools for moms who are earlier on in their pregnancy.
With Storky, you tap a button to start measuring contractions and once the contraction is over, tap the button again. You get an overview of the contractions and interval lengths in one place, so you can share the information with your doctor via email. When your contractions are close enough together, the app lets you know it might be time to go to the hospital. It's available only for Apple devices.
With this app, you can keep track of contractions by tapping a button at the start and end of each contraction. The app analyzes the duration and frequency of contractions and will predict when it's time to go to the hospital. Additional features on the full version include the ability to edit contractions, tell what phase of labor you're in, and email the contraction history in Excel format.
There’s a good chance parents already have this app if they've been tracking the size of the baby throughout pregnancy. In addition to those fruit-size comparisons we all love, the light pink app also comes with a contraction timer. Rate each contraction as low-, medium-, or high-intensity, and the app keeps track of the time, duration, and frequency over the past one hour, up to the last six hours. For the more visual-minded, the app also creates easy-to-read charts. The only slight downside to this one is that the location of the contraction timer isn’t obvious right when you open the app—you have to dig a little to find it.
Another all-in-one pregnancy app, Sprout Pregnancy has a super-easy-to-use contraction timer. Head to the tools section of the free app (which also includes a kick counter and weight tracker) and begin timing. One perk is that you can email yourself the contraction history to have on hand when you call the doctor. One drawback to this app is that there’s no feature for rating the intensity of contractions, so you’ll just have to keep mental note of whether they’re growing stronger. Available for Apple and Android devices.