Meet Daysy, a Hormone-Free Contraceptive Thermometer

Last year when I was looking for a natural contraceptive method, I came across the opportunity of reviewing Daysy. Before I dive into my review, I want to thank Jessica Griger from Valley Electronics.

Since I was 17 I’ve been on birth control pills. I had no idea how disconnected I was from my body, but at the time, avoiding acne and pregnancy seemed like a pretty good deal to me. I was not aware of how the pill was affecting my body or my mood. I always thought I was, by nature, a moody person due to my periods, but I soon realized how wrong I was once I stopped taking birth control. Coming off the pill was not easy. I had water retention, my acne started flaring up, and my hormones were completely out of whack. Two pregnancies later I knew I wanted a more natural approach to contraception, but going back to regular birth control meant low sex drive, a slight feeling of sadness that wouldn’t go away, and a cocktail of side effects that I was not willing to reintroduce into my body.

What is Daysy?

Daysy is a fertility monitor that uses the fertility awareness method (FAM) by learning & tracking your menstrual cycle. With Daysy, you can plan or prevent pregnancy. Daysy will show you if you are fertile or not with an accuracy of 99.3%. It is natural, free of side effects, and no charting is necessary. Daysy’s program relies on the Lady-Comp algorithm, which has a proven track record of over 28 years.

It’s super easy to use – every morning you just need to take your temperature using Daysy and it will display a green, yellow, or red light just like the traffic lights.

My experience

I’ve been using Daysy for almost a year now. I really took my time to review this product because I wanted to make sure I was giving an accurate review.

First of all, let me tell you that I’m very fertile. My husband will get me pregnant just by staring at me. Jokes aside, it’s true but it’s also nerve-wracking. When hormonal birth control was no longer an option for me, I came across Daysy and, honestly, it was the best choice I could have ever made.


  • Natural & hormone free
  • Accurate & effective
  • Takes into account double ovulation
  • No side effects
  • Takes into account sperm lifespan


  • You have to take your temperature every day
  • At the beginning, it may make a buzzing sound that is quickly fixed by using the Daysy’s TRRS cable.
  • Pricey ($330)

I’ve used Daysy only to prevent pregnancy, and so far it has been doing a great job; however, you have to be consistent and use it every day because the more data Daysy can collect the better it will know you, and the more green lights you will unlock. At the beginning, I had nothing but red and yellow lights, but as time went by, I was able to get more green ones. Green light means no pregnancy will occur if having unprotected sex. The Daysy will prevent pregnancy if you use it in the right way, but like many birth control methods, it won’t prevent STDs.

Even though Daysy is expensive, it’s worth it. The battery will last you for two years, and if you divide the cost for a year, it will come out to .90 cents a day for natural, non-toxic birth control.While the battery in daysy will last 2-3 years, it is easily replaced by the user at home ($4-$8 for the battery at local stores) and Daysy herself has a life expectancy of 7 years.


I had the wonderful opportunity of interviewing Nicole Jardim, the creator of fix your period.

Mindfully Augmented (MA): How are hormonal birth control methods augmenting our bodies? Are we losing connection with our bodies due to this augmentation?
Nicole Jardim (NJ): Here’s the straight truth – on the pill (or any hormonal birth control for that matter) no woman’s body is capable of functioning at its optimal level. The female body has a delicate system of hormonal balance, and each woman’s system is slightly different. However, the pill is a one-size-fits-all jam – modern medicine’s biggest flaw if you ask me – and it’s creating a massive disconnect for women who are on it. Women no longer ovulate or make their own sex hormones when on hormonal birth control, which causes significant side effects.
In fact, one study found that 32 percent of 1,657 women who started taking oral contraceptive pills (OCPs) discontinued them within six months; 46 percent of the discontinuations were due to side effects. Yes, almost half!

These side effects typically include amenorrhea (or missing periods), vaginal infections, urinary tract infections, mood disorders like depression and suicidal thoughts, hair loss, lowered libido, lack of lubrication or painful sex, acne, and more. These symptoms are very clear signals from your body that something is wrong. They might be statistically normal, but I promise this is not the way your body was designed to function.

 MA: Why is nutrition a key element to balance our hormones? Why is it so important to balance our hormones?
 NJ: Hormonal birth control (the pill in particular) is linked to a variety of nutrient deficiencies, especially mineral and B-complex deficiencies. So, it is especially important to get the right foods into your body during this transition time. I would even recommend starting to change your diet up to three months before coming off, especially if you are worried about previous symptoms returning.
A big part of optimizing your hormones is balancing your blood sugar because if your blood sugar is out of whack, your insulin will be too. Insulin is a powerful hormone that has an effect on your adrenals, thyroid, and ovaries, so you want to keep it in check.  In addition, protein and fat are the building blocks for hormones, which is why they are so crucial for happy hormones!
The equation for balanced blood sugar:


Balanced hormones = a vibrant, optimally functioning body. Our hormones govern everything, from our sleep patterns, to hunger, to our sex drive and moods. If our hormones are out of whack, we are not going to be able to live our best lives!

MA: Technology is getting more effective each day. Do you foresee that women will stop using hormonal birth control methods and gravitate towards tech devices?
 NJ: Women are simply tired of the side effects they have to endure, and they are quitting the pill and other forms of hormonal birth control in droves. So, I think this shift is already happening, and we’re gradually building momentum, which is really exciting! Daysy has positioned itself as a leader in the women’s health tech space and is playing a really big part in this movement towards more access to hormone-free birth control options.
On the flip side, there’s a significant number of women who use fertility awareness-based methods of birth control that focus on observing fertility signs and don’t require any tech devices at all. While I LOVE fertility awareness, I recognize that it can feel daunting to someone who has been on the pill for 10 years. Ultimately, I think the tech aspect is helping to facilitate this transition because it makes it easier for women to take the leap and ditch the synthetic hormones, while still being able to reconnect with their bodies.
 MA: If you had to give one word of advice to girls who are about to get their periods and have no support in this area, what would it be?
 NJ: I’d start by saying to all girls that your body is beautiful and full of infinite wisdom, and to always trust your intuition when it comes to your health and well-being. Know that your period is going to be a little wonky for the first few years – you may have irregular periods and sometimes heavy or painful periods. Please know that these symptoms are a normal part of the development of the conversation happening between your brain and your ovaries, and over time things will sort themselves out. If you experience extreme symptoms, like very long cycles (consistently longer than 35 days), heavy periods that last longer than seven days, or extremely painful periods (where you’re out of commission for more than a day), or your period disappears for more than three months, then please see your doctor to rule out any underlying causes. However, I do not recommend the birth control pill or any other form of hormonal birth control as a solution for these problems. Food changes and stress management should always come first.
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