Daysy and the copper IUD


The copper IUD, also known as an intrauterine device or IUD, is a small medical device in the shape of a T or anchor that is covered with a fine copper wire. It is inserted into the uterus by a gynecologist.

Copper coils vary in shape, size and the amount of copper wire used. Some models also contain a silver core, while others are made of a copper-gold alloy. However, these differences do not affect the effectiveness of the IUD. In addition to the copper IUD, there is also the copper chain, sometimes called the "mini-IUD," and the copper ball. Both work on the same principle as the copper IUD.

How does a copper IUD work?

The copper IUD is a contraceptive method based on several mechanisms. It continuously releases small amounts of copper, which significantly impairs the mobility of sperm. As a result, they are no longer able to reach the egg and fertilize it. In addition, the copper triggers a foreign body reaction in the uterus. This reaction causes changes in the lining of the uterus, which prevents the implantation of a fertilized egg.

Does the copper IUD have side effects?

The copper IUD has several effects on the menstrual cycle that are of interest to many women:

  • Stronger and longer periods: one of the most common effects of the copper IUD on the menstrual cycle is stronger and longer periods. This happens because of the inflammatory reactions in the uterus caused by the copper. These reactions often lead to increased menstrual flow and prolonged bleeding.

  • Regular cycle: the copper IUD does not usually negatively affect the menstrual cycle in terms of length. Typically, women continue to experience a regular cycle with ovulation and the corresponding high and low periods.

  • More painful periods: some women report more painful periods after insertion of the copper IUD. This may be due to the inflammatory reactions and heavier bleeding. However, experiences vary from woman to woman.

  • No hormonal influence: unlike hormonal contraceptive methods, the copper IUD has no influence on hormones such as estrogen and progesterone. This means that the natural hormonal cycle is maintained.

  • Influence on fertility after removal: Once the copper IUD is removed, fertility usually returns quickly.

Can I use Daysy with a copper IUD?

Since the copper IUD does not affect ovulation and the interaction of hormones, it is also possible to use Daysy in parallel without any problems. 

It is important to know that the likelihood of getting pregnant when using the copper IUD is very low (as is its purpose), so you can use Daysy mainly for the following:

  • Recognize your fifth vital sign with Daysy
    The importance of our fertility is not limited to when we are actively trying to get pregnant. In fact, the state of our menstrual cycle provides information about our overall health. The menstrual cycle can be considered a measurable vital sign that, when taken as a whole, can provide insight into the state of our health, much like our pulse, breathing, or blood pressure. Once you develop a good knowledge of your body and your cycle, you will quickly notice when something is not going as usual. If you are unsure or need help, our customer support team is happy to assist you.

  • No surprises
    If you track your cycle with Daysy and know exactly which phase you are in, PMS symptoms or your period itself will never hit you unexpectedly again. This way, you can take appropriate action early on and adjust your daily routine accordingly to effectively counteract possible discomfort.

  • Cycle Syncing with Daysy
    Have you noticed that your social sensations vary during your cycle? For example, do you often feel tired and sluggish the week before your period? If you know your cycle, you'll know when you're less able-bodied and need more time to yourself. You can better plan not to overcrowd your schedule and make sure you have enough time for yourself. At the same time, you'll also know when to look forward to rising estrogen and testosterone levels, which boost your energy and mood. Learn more at:

  • Nutrition with Daysy
    We often tend to eat very similar foods day in and day out to save time and make our daily lives easier. But the different ratios of estrogen, progesterone and testosterone throughout the cycle also bring different needs to our bodies. In fact, hormonal imbalances can also be triggered by poor nutrition. For example, it is wise to limit sugar, alcohol and caffeine especially during menstruation. The focus should be on eating whole foods throughout the cycle to keep your hormones balanced. Learn more at:

  • Sports with Daysy
    Many competitive athletes already use the method: adapting your sports program to your cycle has proven benefits. In the follicular phase, right after menstruation, the increase of estrogen in your body means you have more energy and a higher tolerance for exercise. In the time around ovulation, the combination of estrogen and testosterone makes your body much more efficient at exercising and using fat for fuel. So it's possible to get better fat burning from the same amount of exercise than at the end of the cycle, so it's a good time for more intense workouts for example. You can learn more at:

  • Increase your productivity 
    Do you sometimes feel overwhelmed at work and at some times of the month feel like you can't think straight? Then there are times when work comes easily to you? Tracking your cycle can even help you perform better at work. In the follicular phase, before ovulation, women tend to feel more productive and eloquent. After ovulation, on the other hand, many women tend to feel drained and unexpresive. Estrogen and testosterone levels drop after ovulation. It may make sense, if possible, to plan your work commitments accordingly and adjust them to your cycle.

  • Improve your sleep by understanding your cycle
    Just as you should not only know when to cut back socially, you should also know your cycle so you can sleep better. If your body temperature rises after ovulation, you'll experience less REM sleep, so you might feel like you're getting less sleep. Restless sleep is also common if you feel bloated and uncomfortable, or maybe even suffer from severe cramps. To counteract this, you should limit your caffeine intake after midday, exercise in the morning rather than in the evening, and keep a set bedtime to regulate your body's circadian rhythm.

  • Adjust your skin care to your cycle
    Have you ever noticed at certain times of the month that the condition of your skin deteriorates? Maybe especially when your period is coming up? Or maybe you get blemished skin around ovulation? If you notice blemishes at certain times of the month, it may indicate a hormonal imbalance. The good news? By tracking your cycle and adjusting your main skincare routine accordingly, you can prevent blemishes and finally make peace with your skin. You can learn more at:

Author: Dr. Niels van de Roemer