Detect and calculate ovulation

Ovulation is the central element in the female cycle: the interaction of various hormones ensures that the mature egg leaves the ovary and makes its way through the fallopian tube. This is the time of ovulation - and fertilization is only possible from the moment the egg has started its journey. who we have already written what happens when in the cycle and which hormones activate what and at what time.

However, it is worth taking a closer look at ovulation itself, because the timing of ovulation plays an important role in family planning. If you know exactly when you ovulate, you can calculate when you are fertile and when you are not.

Learn more about ovulation on this page and get to know yourself and your body better.

When does ovulation happen?

In theory (i.e. with a very regular 28-day cycle), statistically ovulation occurs on the 14th day of the cycle. In reality, however, this calculation applies to well under 20% of women.

When is ovulation delayed?

The time of ovulation can change in each cycle. Hormones react to our living conditions: the egg grows to be potentially fertilized and therefore the body closely observes the circumstances: stress, illness, psychological processes, travel, etc. they can delay ovulation and change your cycle length.

  • Ovulation is the time when the mature egg "leaps" out of the ovaries and into the fallopian tube. The mature egg makes its way to the uterus (uterus) and can now be fertilized.

    Driven by the FSH hormone, several oocytes grow in the ovaries. A so-called follicle is found around each egg cell. The hormone estrogen is produced in the wall of this follicle.

    There is a competition between the maturing follicles: one of the follicles grows faster and reports: I'm ready. Now the hormone LH (luteinizing hormone) comes into play and so-called ovulation occurs: the winning follicle bursts and releases the egg into the fallopian tube, where it makes its way to the uterus.

Questions about ovulation

When am I fertile?

The egg lasts much shorter than many people think: it can be fertilized by a sperm only 12 to 24 hours after it leaves the follicle. Nature has come up with something clever to extend the period: sperm can survive in the female body for up to five days, so in theory it is enough to have vaginal intercourse five days before ovulation to capture the fertilization window of the egg.

When exactly are the fertile days?

Fertile days are the days you can get pregnant. Since sperm can survive in the female body for up to five days, this period is called fertile: the four days before ovulation, the day of ovulation itself, and the three days after ovulation. 

trackle knows all this: all fertile days around ovulation are displayed in the rating in your trackle app. With trackle you know exactly when your fertile days are. Buy the trackle now and you know easily when you are fertile.

How to calculate ovulation?

Ovulation cannot be mathematically calculated based on cycle length. This calculation does not take into account individual circumstances and living conditions. The day of ovulation can vary in each cycle, which is why it is important to check your current fertility status on a daily basis and not just rely on the calendar.

Recognizing ovulation: these are the signs

The various hormones that play an important role around ovulation (e.g. estrogen) also affect other areas of our body. For example, cervical mucus changes or bleeding may occur between periods. Here are some signs that can help you identify ovulation:

  • Cervical mucus

    The hormones estrogen and progesterone cause the cervical mucus change. The closer you get to ovulation, the more vitreous and elastic the cervical mucus becomes. When you have it in your fingers, pull the threads - it is more rotatable. In appearance it resembles raw egg white.

  • Cervix

    The cervix, or cervix, is also affected by hormones in a woman's menstrual cycle. At the beginning of the period, the cervix is quite hard and protrudes into the vagina. As ovulation approaches, the cervix softens, opens and even rises a little higher. You can examine the cervix yourself by inserting two fingers into the vagina and feeling how the cervix feels.

  • Temperature

    The hormone that is released after ovulation, progesterone, raises the body temperature by about 0.2 ° C. However, it is not enough to measure the temperature once, because the temperature level alone does not tell you how high the progesterone is. A temperature profile is therefore required to determine an increase.

  • Intermenstrual bleeding

    Sometimes you can recognize ovulation by bleeding between periods. This, or spotting, occurs in some women around the time of ovulation. Intermenstrual bleeding is either a slightly reddish discoloration of the cervical mucus or even partially like true bleeding. Spotting is therefore a sign of high fertility.

  • Change in libido

    Many women report having multiple sexual intercourse around the time of ovulation. The reason for this change in libido is probably the increased estrogen concentration. This is where our primal instinct emerges: it makes sense to have more sex during the fertile period, at least if you look at it from an evolutionary and reproductive perspective.

  • Medium pain

    Middle pain is a stabbing or pulling sensation in the lower half of the abdomen and is seen by some women around the time of ovulation. Medium pain is not a sign that ovulation is happening at that time. Average pain only occurs in some women near ovulation.

What are the differences between ovulation and fertile days?

The egg cell can only be fertilized 12 to 24 hours after it has burst from the follicle. To extend this period, Mother Nature has come up with something rather clever: sperm can survive in a woman's body for up to five days. If you want to get pregnant, it is theoretically enough to have vaginal intercourse five days before ovulation.

So you are not only fertile on the day of your ovulation, but also in the four days before and three days after. We know that getting pregnant is often not that easy, but perhaps knowing that there is not only one day in your cycle that you are fertile relieves some of the pressure, but there is a full fertile day around the time window of ovulation.