Daysy does not equate contraception! We help you to determine exactly WHEN you have to use contraception.

Calculating ovulation: simple, quick and precise

Get to know your body and your cycle better with Daysy!

Do you want to know when you are ovulating to increase your likelihood for a pregnancy? Determining the time of your ovulation accurately is not that easy without additional help. While your body gives you a number of clues of the progression of your cycle, you have to invest a lot of time to predict the day of your ovulation from these signals. To plan a pregnancy, you should first know that you are not only fertile on the day of your ovulation, but also five days prior to that. That is because sperm can survive in your uterus or the fallopian tubes for up to 5 days and wait there for the egg. This means that in order to use your entire fertile period, you have to know five days prior to ovulating when it will happen.

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Calculating ovulation with the temperature curve and cervical mucus

In natural family planning, two methods are combined to predict the timing of ovulation as precisely as possible. You first need a thermometer that measures with an accuracy of two digits after the decimal point. Conventional thermometers are usually not suitable because they are not precise enough. With this thermometer you now have to measure your basal temperature every morning at the same time before you get out of bed. In order for the results to be as accurate as possible, anal or vaginal measurement for a minimum of three minutes is recommended. You record these measured data in a diagram. According to a set of rules, these temperature values can later be evaluated. With very regular cycles and a little bit of practice, you can calculate the timing of your ovulation based on your temperature curve after a couple of months. The result is, however, not particularly accurate yet.

To receive a more precise result, you should additionally observe your cervical mucus. If it shows a clear change in consistency and colour, it is very likely that your ovulation is due soon. Both methods combined offer you a lot of interesting insights into the course of your cycle and can help you to narrow down the period of your fertile days. Unfortunately, this method also requires a lot of time and precision.

Calculating your ovulation with the cycle monitor Daysy is simpler, faster and more precise!

You want to calculate your ovulation? Daysy helps you with that!

Daysy is a modern cycle monitor with a highly sensitive test prod. Daysy calculates your fertility based on your morning basal temperature. With an accuracy of 99,3%! It works simple and fast – you measure your temperature underneath your tongue with Daysy for only 30 to a maximum of 60 seconds prior to getting up and confirm after a signal whether you are currently on your period. Done! Directly after measuring, Daysy displays to you whether you are fertile during the next 24 hours. This way you can comfortably use each one of your fertile days to get pregnant as soon as possible, without having to do complicated calculations yourself. If you want to plan even better, you can additionally use Daysy's app. It displays your temperature curve, your cycle calendar and a practical preview for the next month. This way you know in advance when to make time for love.

Daysy offers you 99,3% precision in calculating your fertile and infertile days. This very good value is possible because Daysy works with a sophisticated algorithm and data from five million evaluated female cycles. 30 years of research and studies have gone into Daysy, and it has already proven itself thousands of times.

Use Daysy to calculate your ovulation and get to know your body better. If you know the exact timing of your ovulation, you can help your plan for a baby along with natural methods. Because the right timing is what pregnancy is all about!