Ovulation, fertility / овуляція, фертильність / ovulatsioon, viljakus / ovulación, fertilidad

Ovulation – what it is and why it matters for fertility

21.08.2025

Ovulation is one of the most critical processes in a woman’s body, directly affecting fertility and the likelihood of conception. While many women have heard of ovulation, not all fully understand what happens in the body during this process, how to recognize it, or why it is essential to track their menstrual cycle.

Understanding ovulation allows women to be more in tune with their bodies, plan pregnancies more effectively, or take steps to avoid unwanted conception. It also offers insights into overall reproductive health, hormonal balance, and the role lifestyle factors play in fertility.

What Is Ovulation?

Ovulation is the release of a mature egg from the ovary. This event occurs roughly once a month, typically around the middle of the menstrual cycle, although timing can vary from woman to woman. During ovulation, the body is at its most fertile stage, meaning the chances of conception are highest.

Once released, the egg travels through the fallopian tube, where it remains viable for fertilization for approximately 12–24 hours. If the egg is not fertilized by sperm during this window, it disintegrates, and the menstrual cycle continues, culminating in menstruation.

How Ovulation Works

The menstrual cycle consists of several distinct phases, each regulated by hormones:

  1. follicular phase – during this stage, a follicle in the ovary matures, preparing an egg for release. Hormones like follicle-stimulating hormone (FSH) play a key role in the development of the egg;
  2. ovulation phase – triggered by a surge in luteinizing hormone (LH), the mature egg is released from the ovary and moves into the fallopian tube;
  3. luteal phase – the body prepares for a possible pregnancy. If fertilization does not occur, hormone levels drop, and menstruation begins.

Maintaining proper hormonal balance is crucial, as even minor fluctuations in LH, FSH, estrogen, or progesterone can affect whether ovulation occurs regularly.

Signs of Ovulation

Some women can detect when they are ovulating through physical and hormonal cues. Common signs include:

  • mild abdominal discomfort – some experience twinges or cramping, often on one side of the lower abdomen;
  • changes in basal body temperature (BBT) – slight increases in temperature can indicate that ovulation has occurred;
  • cervical mucus changes – around ovulation, cervical mucus becomes clearer, stretchier, and more like raw egg white, facilitating sperm movement;
  • increased libido – hormonal shifts during ovulation can lead to heightened sexual desire;
  • heightened energy and mood changes – some women notice improved energy levels or a positive shift in mood.

It is important to note that not all women experience obvious signs, which is why many use ovulation tests, apps, or calendars to track their cycles accurately.

Ovulation and Fertility

Fertility refers to the ability to conceive. Ovulation represents the peak fertile period within the menstrual cycle. The “fertile window” usually spans 5–6 days: a few days before ovulation and the day the egg is released.

Understanding the fertile window can aid women who are trying to conceive (TTC) or want to avoid pregnancy naturally. Knowledge of ovulation timing empowers women to make informed choices about family planning and reproductive health.

Factors That Affect Ovulation

Several factors can influence ovulation frequency and quality:

  • age – women over 35 may experience less frequent ovulation, and egg quality can decline;
  • hormonal balance – conditions such as thyroid disorders, polycystic ovary syndrome (PCOS), or imbalances in estrogen and progesterone can disrupt ovulation;
  • stress and lifestyle – chronic stress, irregular sleep, or excessive exercise can negatively impact hormone levels;
  • nutrition and micronutrients – deficiencies in vitamins, minerals, or antioxidants can impair ovarian function;
  • medical conditions – infections, chronic illnesses, or reproductive system disorders can interfere with ovulation.

Addressing these factors through a healthy lifestyle, medical care, and regular monitoring can help maintain regular cycles and support fertility.

How to Support Ovulation and Fertility

Supporting reproductive health involves a holistic approach:

  1. balanced nutrition – a diet rich in whole foods, healthy fats, proteins, and complex carbohydrates helps regulate hormones;
  2. weight management – both underweight and overweight conditions can affect ovulation. Maintaining a healthy body mass index (BMI) supports hormonal balance;
  3. vitamins and minerals – nutrients like folate, zinc, selenium, and vitamin D play essential roles in reproductive health;
  4. stress management – meditation, yoga, adequate sleep, and other relaxation techniques can help stabilize hormone levels;
  5. regular gynecological checkups – monitoring hormone levels, ovarian function, and overall reproductive health is key.

Conclusion

Ovulation is a natural, complex, and essential process that significantly impacts fertility. By understanding their cycles, women can take control of their reproductive health, plan pregnancies more effectively, and detect potential issues early.

Combining proper nutrition, lifestyle adjustments, stress management, and supportive aids provides a comprehensive approach to maintaining healthy ovulation and optimizing fertility for women of all ages.

Back to blog