By
Dr. Evan Taerk
5 min read
|
August 27, 2025
Female Fertility

The Ultimate Guide to Ovulation: Everything you need to know to improve chances of conception

Ovulation is a fundamental process in the female reproductive system, marking a critical point in the menstrual cycle. Yet, it's a topic that many people may not fully understand. For those who are actively trying to conceive, understanding ovulation and knowing when it occurs in your cycle is crucial for maximizing your chances of getting pregnant. In this blog, we'll explore:

  • What ovulation is
  • Why ovulation is important
  • How to track ovulation 
  • Various methods and devices available for tracking ovulation and monitoring fertility
  • Signs of abnormal ovulation, and 
  • When it might be time to seek help from a fertility specialist

What is Ovulation?

Ovulation is the release of a mature egg from the ovaries, making it available for fertilization by sperm. It typically occurs around the middle of the menstrual cycle, approximately 14 days before the start of the next menstrual period. For women with a regular 28-day cycle, ovulation typically happens around day 14. However, cycles can vary in length, so pinpointing ovulation requires understanding the individual's cycle length and patterns.

The Ovulation Process:

Ovulation is a complex process regulated by hormones. It begins with the pituitary gland in the brain releasing follicle-stimulating hormone (FSH), which stimulates the growth of ovarian follicles, each containing an immature egg. As the follicles develop, they produce estrogen, which triggers the thickening of the uterine lining in preparation for a potential pregnancy.

Once estrogen levels peak, typically around mid-cycle, it triggers a surge in luteinizing hormone (LH), causing the dominant follicle to release its mature egg into the fallopian tube. This is ovulation. The released egg is then available for fertilization for about 12-24 hours.

If the egg is not fertilized within this window, it disintegrates, and hormone levels drop, leading to the shedding of the uterine lining and the onset of menstruation.

Importance of Ovulation:

Understanding ovulation is crucial for several reasons:

  • Fertility: Ovulation is necessary for conception. Knowing when ovulation occurs can increase the chances of pregnancy for those trying to conceive.
  • Family Planning: Understanding ovulation can help individuals and couples prevent pregnancy by avoiding intercourse during fertile periods.
  • Health Monitoring: Regular ovulation is an indicator of overall reproductive health. Irregular ovulation patterns may signal underlying health issues that require medical attention.

How to Track Ovulation:

Tracking ovulation involves monitoring changes in your body to identify when ovulation is likely to occur. Here are some methods you can use to track ovulation:

  1. Menstrual Cycle Calendar Tracking: Keeping track of your menstrual cycle on a calendar can help you predict when ovulation will occur. Ovulation usually occurs around 14 days before the start of your next period.
  2. Basal Body Temperature (BBT) Charting: Your basal body temperature slightly increases after ovulation. By taking your temperature every morning before getting out of bed and charting it, you can identify the slight temperature rise that indicates ovulation has occurred.
  3. Ovulation Predictor Kits (OPKs): These kits detect the surge in luteinizing hormone (LH) that occurs just before ovulation. By testing your urine with an OPK, you can pinpoint the most fertile days of your cycle.  Check out the Ovulation Tests from our friends at bird & be here!
  4. Cervical Mucus Monitoring: Changes in cervical mucus consistency and volume throughout your cycle can indicate when ovulation is approaching. Fertile cervical mucus is clear, slippery, and stretchy, resembling raw egg whites.

Go digital! Gone are the days of needing to use paper and pen to do any of the above.  There are a plethora of smartphone apps available that help you track your menstrual cycle, BBT, and other fertility signs to predict ovulation. Head over to What to Expect’s “Best Fertility Trackers of 2025” to learn more about options available to make ovulation and fertility tracking a breeze.  

Devices for Tracking Ovulation:

In addition to the methods mentioned above, there are also several Fertility Monitoring devices designed to track hormone levels in your urine to help predict ovulation.  Fertility Monitors can be of benefit to anyone trying to conceive, but are especially helpful for those who have a history of irregular periods, polycystic ovary syndrome (PCOS), thyroid concerns, and who are over the age of 35.  Check out Healthline’s “Best Fertility Monitors” article to learn more.  

While tracking ovulation or using a Fertility Monitor works for many individuals and couples when trying to conceive, it’s important to also be able to recognize when there may be an issue with your ovulation, and when it may be time to consult with a fertility specialist. 

Signs of Abnormal Ovulation:

While variations in menstrual cycles are normal, consistently irregular cycles or other signs may indicate abnormal ovulation. These signs include:

  • Very short or long cycles (less than 21 days or more than 35 days)
  • Irregular menstrual cycles
  • Absence of ovulation symptoms (such as changes in cervical mucus or BBT)
  • Painful ovulation
  • Spotting or abnormal bleeding between periods

If you notice any of these signs, it may be time to consult with a fertility specialistYou may also want to consider seeing a fertility specialist if:

  • You want to freeze your eggs, sperm or embryos
  • You have been trying to conceive for over 6 months
  • You have experienced pregnancy loss
  • You are >37 years old and planning your first pregnancy
  • You have absent or irregular menstrual cycles
  • You or your partner have a known or suspected reproductive health issue or a history of STIs
  • You or your partner have a known hereditary genetic condition
  • You require the use of donor egg, sperm or gestational carrier to help build your family

In conclusion, tracking ovulation is a powerful tool for optimizing fertility and increasing your chances of conceiving. By understanding your body's natural rhythms and using the right methods and devices, you can take control of your fertility journey. If you have any concerns about ovulation or fertility, don't hesitate to reach out to a qualified healthcare provider or fertility specialist for guidance and support.

About Pollin Fertility

Pollin Fertility was founded in 2023 with a mission to develop the most advanced clinical, digital and IVF lab technology to improve the fertility patient experience and treatment outcomes.  

Pollin’s first flagship clinic is located at 2360 Yonge St. in midtown Toronto.

To learn more about the fertility treatments and services offered at Pollin visit www.pollinfertility.com

To book an OHIP covered consultation with one of our fertility specialists or click the link below.

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