Whether or not you’re trying to conceive, using Daysy to monitor and track your fertility status is an effective way to plan for or avoid pregnancy. Learn more through my full Daysy review below.
I was on hormonal birth control for over 13 years, and when I finally decided that it was time to ditch the hormones, it was important to me that I found a natural way to help avoid pregnancy.
While many rely on period-tracking apps, they aren’t always accurate depending on the actual day you ovulate and your cycle length. I knew that I needed an effective and accurate tool, and that’s why I chose Daysy.
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What is the Daysy fertility tracker?
Daysy is part basal thermometer and part app. Daysy is a small device that you use to orally take your temperature the moment you wake up. Based on your temperature reading, you will receive feedback on whether or not you’re fertile. That morning reading is your fertility status for the next 24 hours.
From there, you and your partner can determine the best course of action for the day based on your intention – to get pregnant or to prevent pregnancy.
Recent Daysy updates
As this Daysy review was written back in 2018, there have been significant updates to Daysy and her accompanying app. Click on a section below to read the latest about the Daysy fertility monitor.
You may be wondering, how long does it take Daysy to work?
While Daysy can “work” right out of the box, the feedback and data you receive won’t be custom to your unique menstrual cycle. What makes Daysy different from other basal body temperature thermometers is that it has a built-in algorithm to learn your cycle and you will begin to see more customized readings the longer you’ve used it.
I suggest using Daysy consistently for a minimum of three months for the best representation of your fertile window.
By using Daysy over a more extended period, Daysy will start to predict when you’re fertile and ovulating and when you’re not. The longer you use Daysy, the more insight and accurate feedback you’ll receive when viewing data in the app or on the monitor itself.
Check out my video review of Daysy
2019 update: Daysy 2.0 released!
As of late March 2019, Daysy 2.0 will be replacing the original Daysy outlined in this post. I was fortunate enough to test out Daysy 2.0 before she hit the market, and let me tell you, I’m thrilled with her new updates!
Here’s what you can expect with Daysy 2.0:
- Bluetooth capabilities (no more plugging Daysy into your phone to sync data)
- A rechargeable battery
- The ability to edit menstruation input via the button on Daysy
- More robust housing and a flexible neck
In addition to the updates on the physical Daysy, the app has received a beautiful refresh that promotes ease of use and more accessible data about your cycles. And of course, use my daysy discount code to save on your order.
Already have a Daysy but want to upgrade to the newest version? Contact customer service for the most current trade-in offers.
2020 update: DaysyView app becomes DaysyDay
As of December 2020, the Daysy app received a major facelift.
In fact, DaysyDay is an entirely new app designed to help you track your cycle, basal body temperature, and log your period, intercourse, cervical fluid, notes, and more.
When you open the app, you’ll see that it’s much more intuitive than it’s predecessor and has a cleaner, more modern interface. Check out some screenshots below.
How to use Daysy
Like I mentioned above, it is imperative to use Daysy right when you wake up after a night of at least four hours of consecutive sleep. Not after you get up to go to the bathroom, not after you check your phone, not after you kiss your partner good morning.
The reason why the timing is so crucial is that Daysy measures your body’s resting temperature, and that number should be captured in its most natural state to ensure the most accurate reading.
If you are menstruating that day, make sure to let your Daysy know by holding down the center button until the purple light shows. The recording of your menstrual cycle is essential for your Daysy to identify and affects how she learns your cycles.
What do the lights mean on Daysy?
After you take your morning reading, which takes about thirty seconds, your Daysy light will turn either red, yellow, or green. Here’s what those lights mean.
- Red light: you are fertile, use an additional barrier method to prevent pregnancy. We prefer these super-thin vegan condoms if we are not actively trying to conceive.
- Yellow light: handle these days like red days; they mean that Daysy is experiencing cycle variations and is still learning your cycle.
- Green light: you are not fertile and can enjoy sex with your partner without another method of protection.
From there, you can choose to sync your daily reading to the Daysy app to chart out your temperature and cycle changes. I sync to the app every few days just to be safe.
Again, it takes about three months for Daysy to learn your cycles, so don’t get discouraged if you see many red and yellow days pop up over the first ninety days. It’s essential to make sure your partner is on the same page as you throughout this process!
How effective is Daysy?
Planning for or avoiding pregnancy is a big deal, and you should have a device that puts your mind at ease. The developers of Daysy are pioneers in the femtech industry and have over a half a million users of their fertility trackers and monitors.
Did you know that Daysy 2.0 is the 2019 winner of the Red Dot Design Award? Learn more about what makes Daysy so great.
It’s important to note that Daysy is a fertility calculator vs. a traditional birth control like the pill. With Daysy, there are no synthetic hormones, chemicals, or unwanted side-effects and full control over whether or not you’d like to try for a baby within a moment’s notice.
Should you decide to begin a family, Daysy can be used to chart out your most fertile days and give you more insight into when the potential for pregnancy is at its highest. Rest assured that the Daysy effectiveness is definitely in your favor.
What I love about Daysy
- 100% natural – there are no synthetic hormones or medicine of any kind
- Empowers me to reconnect with my body’s natural cycles
- One-time payment vs. monthly prescription bills (like when I was on the NuvaRing)
- Super user friendly and easy to use
- Easy to figure out whether you’re fertile or not
- Varying settings in the app depending on if you’re trying to get pregnant or not
What I don’t love about Daysy
- Remembering to take my temperature immediately upon waking up (I’ve started placing it on top of my phone to remind me to do it first thing)
- No Bluetooth syncing. You do have to plug it into your phone (with the extension piece for iPhone 7 and above), but it’s really not that complicated Update: Bluetooth capability was added for Daysy 2.0 as of March 2019
- Remaining patient throughout the initial learning cycle
Final thoughts and wrapping up my Daysy review
Daysy is genuinely one of the best investments I’ve made in my health. She allows me to feel empowered and secure in my sexual wellness. The physical self-care changes (more energy, less anxious feelings, no more brain fog) that I’ve felt in just a few weeks from choosing Daysy over my IUD is so incredibly eye-opening and worth every penny.
The Daysy fertility tracker is hands-down my favorite birth control method to date. Just make sure to use condoms (we love this brand best after trying many) on red and yellow days if you aren’t trying for a baby!
It has empowered me to take back control of my own body and begin to understand how I feel without synthetic hormones. I feel confident and secure while using Daysy, and it has opened up my relationship to some essential topics, including how I’m feeling during different phases of my cycle.
If you’re considering changing your hormonal birth control, Daysy might just be the right choice for you. Please note, I do suggest working with a functional doctor or midwife while navigating the transition from hormonal to non-hormonal birth control, as this experience can be different for everyone.
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Do you still have a question?
If you still have a question I didn’t address in this post, ask it below! I will do my best to help you get the answers you’re seeking.
Some common questions are:
- Is Daysy FDA approved?
- How effective is Daysy?
- Is Daysy the best fertility monitor?
- How do you clean your Daysy?
- Where do you buy Daysy?