When are ovulation tests done?

The day we start the ovulation tests varies and depends entirely on the length of our cycle. That is, a woman with a 28-day cycle will start on a different day than a woman with a 25- or 40-day cycle.

Therefore, a key factor for correct use of the tests is to know the cycle length (we always consider the shortest duration in the last 6 months, so we do not start too late and miss our fertile days).

Example of determining cycle length:

The first day of menstruation (with normal flow) is day 1 of the cycle; the period from this day to the next menstruation is the length of the cycle. For example, if menstruation starts on June 1 and then again on June 29, the cycle length is 28 days.

The accompanying chart that comes with any ovulation test you choose, with detailed instructions in Greek, indicates based on your cycle which day is correct to start testing.

Below is the chart for determining the start day of ovulation tests according to cycle length:

Chart for One Step (strips, midstream, cassette):

Chart for Clearblue (digital):

It is very important to consult the instructions and the chart from the product you have chosen before starting.

Ovulation tests should be done every day, starting from the day indicated by the chart, at approximately the same time each day, until a positive result is obtained. It is equally important not to skip days, as a positive result often appears only for 24 hours and may be missed if testing deviates from the recommended times. Establish a routine during the day that will bring only good news for you and your partner.

The recommended times for using One Step ovulation tests (strips, midstream, and cassette) are to test at a consistent time of your choice between 10:00 and 20:00, and not with first-morning urine. Clearblue ovulation tests (digital) can be used at any time of the day.

It is important to avoid large fluid intake for 2 hours before testing and not to urinate for 4 hours before the test, as this could affect the detection of the hormone being measured (LH).

In all our ovulation tests, you can find helpful videos in their descriptions showing how to use them (result timing, interpretation, etc.).