What is the symptothermal method?

The symptothermal method is a method of natural family planning (NFP). It helps to understand where exactly you are in the cycle, that is, if you can get pregnant or not. You can see different fertility indicatorssuch as core body temperature and moco cervical. Certain calculation rules help to interpret these fertility indicators and the cycle, to thus reliably evaluate.

Taking into account not only the core body temperature and, but also the cervical mucus, a "double check" is carried out. This means that fertile and infertile days can be distinguished much more accurately. The calculation rules of the symptothermal method have been investigated and defined by several studies*.

For whom is the symptothermal method suitable?

The symptothermal method is excellent for everyone: women who are nursing, women who work shifts, women with cycles irregular women, women who want to have children, women who want to get to know themselves and their bodies better, and women of all ages.

How does the symptothermal method work?

The symptothermal method is based on the interaction of the hormones estrogen, progesterone, LH and FSH in the body:

Prior to ovulation, your body is busy letting several egg follicles mature. This is what the hormone FSH does. All of these growing sacs produce estrogen. The hormone estrogen affects the moco cervical – the closer you get to ovulation, the thinner and more transparent your cervical mucus becomes. The hormone LH is activated and triggers ovulation: the best, most beautiful and most developed follicle buds from the mature follicle and sends the egg on its journey. While the egg is on its way, the follicle calls it a day. It becomes the corpus luteum and produces progesterone. This hormone causes a characteristic increase in body temperature: this higher temperature remains until the next menstruation begins and a new cycle begins

The symptothermal method uses changes in cervical mucus and core body temperature to assess your cycle and differentiate between fertile and infertile days. An increase in core body temperature is a sign that the ovulation has taken place and that you are no longer fertile. Cervical mucus - the clearer, more spindly and transparent it becomes - is a sign that you are approaching ovulation and that you are fertile. After ovulation when the moco cervical thick, lumpy, or "disappears" altogether, it's a sign that ovulation has occurred and you're no longer fertile. 

How do I use the symptothermal method?

Every morning before you get up, you take your temperature orally or vaginally and write it down. During the day you observe your moco cervical and note its status at night. Every night you compare the temperature values and the quality of the cervical mucus to know if ovulation It has already happened or is about to happen.

According to the rules of the symptothermal method, the ovulation occurs when these two conditions are met:

1) A peak of cervical mucus has occurred, that is moco cervical with very good quality (particularly clear, sticky and stretchy) followed by three days of cervical mucus with clearly worse quality.

2) A high temperature has occurred, that is, the temperature has been higher for at least three days in a row than the previous six days. The third highest temperature value must be at least 0.2°C higher than the previous six days.

A slightly more complicated matter is the infertile days before the ovulation. At the same time play the moco cervical a determining role: it serves as a signal of the beginning of fertility. In addition, the last cycles are analyzed and, based on the increase in temperature, it is calculated when the earliest ovulation occurred. Once again, the symptothermal method applies the "double check" to the cycle to safely assess.

  • Disruptive or disturbing factors cause the basal body temperature to rise without ovulation having taken place yet. Very important: each of us is different and reacts differently to stress, etc. You can recognize a "disturbed" temperature reading by the fact that your temperature suddenly rises for a day or two and then drops again.

  • Common confounding factors that affect basal body temperature in many women include:

    – Drug consumption

    – Unusual consumption of alcohol

    – Short/disrupted night’s sleep

    – Stress

    – Time change

    – Cold or illness

  • Advantages of the symptothermal method

    Observing bodily symptoms, including temperature, has been shown to work. It is not invasive at all, it is very significant and it helps women to get to know their body better; it also helps to make more self-determined decisions given the existence of better knowledge and information. The symptothermal method helps you calculate your fertile days, always through a "double check".

  • Disadvantages of the symptothermal method

    The interaction of the different hormones is a miracle, but neither is it a machine. Different things can unbalance the system. And your daily life is not full enough? The know and feel what your body does - not so easy to implement. This is why it is easy to make mistakes when implementing the symptothermal method, especially if the measurements are taken selectively, that is, only in the morning, and the data is entered or noted down by hand.

  • Reliability of the symptothermal method

    The symptothermal method has been well researched for many years and several studies have shown its reliability in determining the fertile days.

trackle facilitates the symptothermal method

The symptothermal method, on which trackle is based, combines your core body temperature measured overnight with your information about the moco cervical. It's very easy - and essential for security.
Because in order to be able to say for sure when the ovulation has happened and what the current state of the cycle is, the temperature values must be correctly measured, correctly transmitted, and correctly combined with other body observations. It takes care of this trackle, an innovative sensor system for you:

trackle only uses the core body temperature from inside your body: the so-called surface temperature, for example at the wrist, is too easy to be influenced. trackle measures while you sleep and this avoids error-prone spot metering in the morning, contributing to greater safety. trackle transfer your temperature data automatically: no more errors when entering curves, tables and applications. trackle calculates your cycle according to the standards of the well researched and reliable symptothermal method.

  • Measure core body temperature more accurately

    The trackle tracking sensor uses a highly accurate thermometer that records and stores core body temperature to the hundredth. Therefore, it meets the requirements of the symptothermal method – and not even the slightest temperature deviation slips through your fingers.

  • So easy while you sleep

    The classic measurement in the morning is difficult: it requires a lot of discipline and a regular rhythm of life to be really reliable. Measuring while you sleep makes your life easier: no matter when you wake up, when you sleep, if you are disturbed at night or have a longer party at night; measuring your temperatura corporal basal during sleep, the lowest value is recognized in any case. As it is.

  • trackle does the work for you

    Calculate, count, observe rules, enter values: yes, it has to be so for the results to be correct. But you don't have to do it yourself, right? That's what smart is for trackle. Transmit your data and calculate everything necessary for a reliable result.