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08/11/2025 10:45 a.m.

Trying to Get Pregnant Support for Your Fertility Journey

Dr. Niels van de Roemer
Dr. Niels van de Roemer Medical Adviser

Find all of your fertile days, with Daysy

When it comes to getting pregnant, timing is everything. Each cycle only has a few fertile days when conception is possible. A fertility tracker helps you identify these days precisely, predicting your ovulation and showing you when you’re most fertile. This way, you and your partner have the right information to plan your pregnancy with confidence.

Why is timing so important when trying to conceive?

A woman is only fertile on a few days each cycle – the so-called fertile window, which includes the five days before ovulation and the day of ovulation itself.

  • Ovulation is the release of a mature egg from the ovary.
  • The egg can only be fertilized for about 12–18 hours.
  • Sperm, however, can survive in the female body for up to five days.

This means that intercourse must take place during this fertile phase in order for pregnancy to occur.

Why can it be difficult to pinpoint the fertile days?

Many women rely on calendar methods or apps to estimate fertility, but these are based on averages and can be inaccurate since cycles often vary. Ovulation can shift due to factors such as:

  • Stress
  • Illness
  • Travel or time zone changes
  • Lack of sleep
  • Hormonal fluctuations

That’s why tracking basal body temperature is a more reliable way to identify ovulation.

How can a fertility tracker support you?

  • Accurate identification of your fertile days – regardless of cycle length or regularity
  • Saves time. No need for manual temperature charting
  • Reduces stress, less uncertainty
  • Early pregnancy detection through continuous temperature tracking
  • Provides helpful data for doctors during fertility treatments

How Daysy can help you conceive

What makes Daysy and the DaysyDay app unique is that you can not only review your past cycles by days, weeks, or months, but also see a forecast of your upcoming fertile and non-fertile days. Based on your collected data, Daysy predicts how your cycle is likely to develop in the near future.

With the DaysyDay app, you can also log activities in your calendar and track them over time. You can even share your data and cycle forecasts with your partner. This makes timing stress-free. You can plan ahead, whether it’s your daily routine or even a vacation during your most fertile days. After all, in a cozy hotel room, on a beach in Barbados, or simply at home in a relaxed atmosphere, planning a baby becomes even more romantic.

How are your fertile days displayed?

By measuring your temperature each morning before getting up and recording whether you have your period, Daysy shows you if you are fertile / possibly fertile (red) or not fertile (green). The predicted day of ovulation is highlighted with a blinking light:

  • Ovulation day
  • Fertile / possibly fertile – all at a glance

With Daysy’s simple color system, you can instantly see which days are best for you and your partner to focus on your dream of having a baby.

Maximizing your chances of pregnancy through cycle awareness

Multiple studies confirm how important it is to know your cycle in order to increase your chances of getting pregnant.

  • For fertile couples, the average probability of conception per cycle is 27.7% when they have unprotected intercourse once or multiple times during the fertile window. This means only about one in four cycles is successful.
  • The chance of conceiving is highest, around 25%, one to two days before ovulation. The cumulative probability for couples who time intercourse is about 92% over twelve cycles.

In simple terms: having sex on the five days leading up to ovulation maximizes your chances of pregnancy. Several scientific studies demonstrate the effectiveness of cycle awareness:

How Daysy helps:

  • 81% of women who timed intercourse to their fertile days became pregnant within six months.
  • 92% achieved pregnancy within twelve months.

As it is not possible to conceive outside of the short fertile window each cycle, trying to conceive without fertility monioring can lead to frustration and disappointment. The journey can become stressful without the knowledge and tools you need to feel empowered and in control.

Daysy fertility monitor, used alongside our companion DaysyDay cycle app, makes knowing when you are in your short fertile window easy, simple, and stress-free. No OPKs, no pee strips, no complicated calculations, and no guessing - in around a minute a day, Daysy will tell you when it’s the right and the best time for you to conceive. Take the mess out of pregnancy planning, and just focus on the joy that awaits you.

With Daysy, you can focus on the journey with your partner and put the fun back into baby-making! No need to remember anything, count days or calculate, and no need to keep records and notes, because Daysy takes care of all that work for you. Our simple color-coded light system makes it super simple for you and your partner to know when is the time to conceive. Is it a red light? Then that’s the color of love!

Daysy is backed by more than 40 years of research plus a unique algorithm that combines the data of 5 million menstrual cycles with your very own unique data. Simply take your basal body temperature under your tongue each morning and confirm your menstruation days. Daysy then calculates your fertile days and predicts your ovulation day.

Daysy is a smart fertility monitor that can bring you closer to your baby - without any of the mental work or stress!

Timing is everything: How Daysy helps you conceive faster

One study revealed that the likelihood of conception in any one cycle when a couple has sexual intercourse one or more times on fertile days is just 27.7%. Couples who timed sexual intercourse close to ovulation had a far higher success rate, with 98% conceiving within 12 months. Research has shown us that timing within a few days of ovulation is essential to conception success rates.

In our own survey of Daysy users, 63% reported they were able to conceive the first cycle they tried. A full 89% of those surveyed reported they conceived within just three months with Daysy.

Daysy precisely identifies your unique ovulation and makes timing intercourse during your cycle simple and successful.

Often, once we’ve made up our minds to get pregnant we’d like it to happen as soon as possible. Fertility tracking allows for more precise timing of conception and increases the likelihood that you will get pregnant faster. The power is in your hands with Daysy.

Daysy fertility monitor works well with irregular cycles

If you have an irregular cycle or have discovered you have difficulty conceiving due to hormone imbalance issues, it is even more important to pinpoint your ovulation and most fertile days.

If your partner has sperm motility or vitality issues, it is also most important that sexual intercourse is timed to coincide closely with the few days leading up to ovulation.

Detect a pregnancy with Daysy fertility monitor

Basal body temperature (BBT) is a useful way to detect pregnancy at a very early stage. If your period is late and your BBT stays consistently elevated (around 37°C) for more than 18 days, this may indicate an early pregnancy. You might even observe a second temperature rise caused by the implantation of the fertilized egg in the uterus, which typically occurs 6 to 12 days after ovulation.

Daysy can indicate a possible pregnancy by flashing all lights (red, green, and yellow). A higher likelihood of pregnancy is shown when all lights remain steadily lit. In your temperature chart, a potential pregnancy is displayed in blue.

We recommend continuing to use Daysy during the first trimester, as it can give you a helpful indication that your pregnancy is progressing smoothly. Of course, it’s entirely your choice how long you continue measuring your temperature, or if you prefer, you may stop at any time. Once you decide to pause measurements and store your Daysy, simply contact our customer support. They will provide you with important tips for storing your device and guidance for resuming use after childbirth.

When is it advisable to consult a fertility clinic and consider fertility treatment?

  • If pregnancy does not occur despite regular, targeted intercourse over twelve months, it is advisable to seek medical help.
  • Women over 35 should consider consulting a fertility clinic after six months, as fertility declines more rapidly with age.
  • Early consultation can help identify possible causes and discuss individualized treatment options, hormonal support, or assisted reproductive techniques.

This way, you can increase your chances of conceiving in a focused and efficient manner.

Sources

1) C Gnoth et. al. Hum Reprod. 2003 Sep;18(9):1959-66

FAQs

How can a cycle tracker help with irregular cycles?

For women experiencing fertility challenges or irregular cycles, it is especially important to know exactly when the few days occur in which an egg can be fertilized, in order to maximize the chances of conception. This is also relevant if the partner’s sperm are less long-lived or slower.

How does a cycle tracker support fertility?

It identifies the fertile days, reduces uncertainty, saves time, and provides valuable data that can assist doctors during fertility treatments.

How can I find out my fertile days?

The most reliable way is with a cycle tracker, by monitoring your basal body temperature.

What options are available at a fertility clinic?

Depending on the cause, treatments may include hormonal therapy, insemination, in vitro fertilization (IVF), or ICSI. The most suitable method will be determined individually in consultation with your doctor.

Learn more

A balanced diet plays a crucial role when trying to conceive. It can positively influence fertility and prepare the body optimally for pregnancy.

Trying for a baby and not sure where to start? Discover practical tips, from understanding your fertile window to optimizing your health and mindset, to boost your chances of conceiving and prepare for a healthy pregnancy.

The fertility tracker method is a modern, digital evolution of natural family planning. Common sources of error in traditional methods are eliminated. Your ovulation is reliably detected and recorded.

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