Ultrasound IrelandMedical & Maternity Ultrasound Centers
Fertility Monitoring

Ovulation Scanin Dublin

Monitor your cycle to help estimate when ovulation may occur. Track follicle development and confirm ovulation to support your conception journey.

First Scan:€170|Medical Card:€150|Follow-up:€125

What Is an Ovulation Scan?

An ovulation scan monitors your menstrual cycle to help estimate when ovulation may be expected. By measuring the size of follicles in your ovaries and tracking their development, we can provide timing guidance for intercourse or fertility procedures.

While timing is one factor in conception, success also depends on egg quality, sperm parameters, uterine health, and other individual factors.

What We Assess

During this scan we will examine:

  • Follicle size and numbermeasuring developing follicles in both ovaries
  • Dominant follicleidentifying the follicle most likely to release an egg
  • Corpus luteumconfirming ovulation has occurred (post-ovulation scans)
  • Uterussize, shape, and position
  • Endometriumthickness and appearance of the womb lining
  • Fibroids or polypschecking for any that may affect implantation

What the measurements tell us:

  • A mature follicle ready to ovulate typically measures 18-24mm
  • After ovulation, the follicle collapses and becomes the corpus luteum
  • These changes help us assess where you are in your cycle

When to Have Your Scans

Ovulation monitoring typically starts around Day 9 of your menstrual cycle, with scans performed at 1-2 day intervals:

These are guidelines only, please follow the advice of your GP/Fertility Care Provider.

Cycle DayPurpose
Day 9-11Identify developing follicles, measure sizes
Day 12-14Track dominant follicle approaching ovulation size
Day 14-16Confirm ovulation has occurred or may be approaching

Day 1 is the first day of menstrual bleeding. These are general guidelines only.

You will typically have 3 scans per cycle. Your first appointment includes a detailed gynaecological assessment; subsequent scans focus on the ovaries and are offered at a lower cost.

What's Included

First Pelvic Scan

€170
  • Complete gynaecological ultrasound assessment
  • Uterus, endometrium, and both ovaries examined
  • Check for fibroids, polyps, or cysts
  • Follicle count and measurements
  • Sonographer impression on the day
  • Radiologist report (within 2-3 working days)
  • Images sent to you after the scan for sharing with your care provider

Follow-up Scans

€125
  • Focused assessment of ovaries and follicle development
  • Confirmation of ovulation
  • Sonographer impression on the day
  • Images sent to you after the scan for sharing with your care provider

Within 6 months of first scan

What to Expect

1

Before Your Scan

First complete scan:

Attend with a full bladder — drink 1 litre of water approximately 1 hour before your appointment. Finish drinking at least 20 minutes before scan time.

Follow-up scans:

Empty bladder required — these are performed transvaginally only.

Preparation checklist:

  • Full bladder for first scan (empty for follow-ups)
  • Know your cycle day (Day 1 = first day of bleeding)
  • Bring any instructions from your fertility clinic
  • Wear comfortable, loose clothing
2

During the Scan

Ovulation scans are performed transvaginally for maximum accuracy.

A thin ultrasound probe, covered with a sterile sheath and lubricating gel, is gently inserted into the vagina. The ultrasound signal is focused on the ovaries, allowing the sonographer to clearly visualise and measure your follicles.

The sonographer will measure the size of any growing follicles, signs that ovulation may be approaching, and evidence that ovulation has occurred.

Duration: 20-30 minutes for first appointment, 15-20 minutes for follow-ups

3

After Your Scan

First complete scan:

The sonographer will discuss the findings with you on the day and provide images. A Consultant Radiologist will review the detailed report, which will be sent to your GP or referring doctor within 2-3 working days.

Follow-up scans:

Results are available immediately after your appointment. The sonographer will explain:

  • The number and size of your follicles
  • Whether ovulation is approaching or has occurred
  • Timing guidance for intercourse or fertility procedures

You'll receive a digital copy of your report and images via email or to your mobile phone, which you can share directly with your gynaecologist or fertility specialist.

Understanding Your Results

Follicle development and ovulation:

Follicle SizeWhat It Means
< 10mmEarly development, not yet dominant
10-14mmGrowing, becoming dominant
15-17mmApproaching maturity
18-24mmMature, ovulation typically occurs within approximately 24-36 hours
Corpus luteumOvulation has occurred

Signs of ovulation:

  • Dominant follicle disappears or collapses
  • Corpus luteum visible (irregular structure where follicle was)
  • Small amount of free fluid in the pelvis
  • Endometrium shows secretory changes

Why You Might Need This Scan

Common reasons for ovulation monitoring:

Natural conceptiontiming intercourse to coincide with your fertile window
Irregular cyclesdetermining if and when you ovulate
Fertility treatmentmonitoring response to ovulation induction medications
IUI timingscheduling insemination at the optimal time
Confirming ovulationverifying that ovulation has occurred
Unexplained infertilityassessing whether ovulation is occurring normally

Frequently Asked Questions

No. You can book directly without a referral. If you're working with a fertility clinic, they may provide specific instructions.
Typically 3 scans per cycle, performed at 1-2 day intervals from around Day 9 until ovulation is confirmed.
Transvaginal ultrasound provides much clearer, more accurate images of the ovaries and follicles than an abdominal scan. This accuracy is essential for reliable ovulation prediction.
Most women find the scan only mildly uncomfortable. The probe is thin and inserted gently. You can ask to stop at any time if you feel uncomfortable.
When the dominant follicle reaches 18-24mm, ovulation typically occurs within approximately 24-36 hours, though timing can vary between individuals. Your GP or healthcare provider will be in the best position to advise on the likely timing of ovulation, as we can only comment on the information seen on our ultrasound scans and provide the measurements.
Yes. We provide digital copies of your report and images via email, which you can forward to your fertility specialist immediately.
If scans show that ovulation isn't occurring, this information helps your doctor determine next steps. Treatment options may include ovulation induction medications.
Yes. Ultrasound uses sound waves (not radiation) and has been used safely for decades when used according to medical guidelines.

Pricing

Scan TypePrice
First Pelvic Scan€170
Medical Card Price€150
Follow-up Scans (within 6 months)€125

Note: Medical Card discount does not apply to follow-up scans.

Cancellation: We require 24 hours notice for cancellations or rescheduling.

Contact our friendly team today. Available 7 days a week.

Experienced sonographers specialising in gynaecological and fertility scans.