Egg Tracking

14.05.2026 Prof. Dr. Cihan Kaya

How is Egg Tracking (Ovulation Tracking) Done? – Comprehensive Guide

What is Egg Tracking?

Egg tracking (ovulation tracking) is a monitoring process performed to determine when ovulation occurs. It provides the most accurate timing for couples planning pregnancy.

Why Is It Done?

It is applied to increase the chance of pregnancy, detect ovulation problems, and plan treatment.

Tracking with Ultrasound

It is the most reliable method. It starts on the 2nd-3rd day of menstruation, and follicle size is regularly measured. Ovulation usually occurs when the follicle is 18-22 mm in diameter.

Hormone Tests

By measuring LH, estradiol, and progesterone levels with blood tests, the time of ovulation can be determined.

Home Ovulation Tests

By measuring the increase in LH in urine, it provides information 24-36 hours before ovulation.

Cervical Mucus Tracking

During the ovulation period, vaginal discharge increases and becomes egg-white consistency. This period indicates the fertile window.

Basal Body Temperature

After ovulation, body temperature slightly rises. However, it is limited in terms of timing as it provides information after ovulation.

Ovulation Trigger Shot

For follicles that reach an appropriate size during tracking, a trigger shot is administered to control timing.

Most Accurate Timing

The 2 days before ovulation and the day of ovulation are the period with the highest chance of pregnancy.

For Whom Is It More Important?

In patients with infertility, menstrual irregularities, PCOS, and those planning IVF/IUI, egg tracking is critically important.

Conclusion

Egg tracking is one of the most important methods that increases the chance of pregnancy. With the correct method and timing, success significantly increases.

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