Find your most fertile period with an ovulation test

The woman is most likely to become pregnant on the day of ovulation or the day before. Using an ovulation test is an easy and safe way to predict ovulation and thus the fertile period, which lasts 5-7 days.

The ovulation test measures the concentration of the ovulation hormone LH hormone (lutein). The hormone is increased in the body at the time of ovulation and is excreted in the urine. When the test is positive, the chance of becoming pregnant is greatest in the following 2-3 days.

There are many different tests in the trade, but they all work the same way.


To find out when to start testing, you need to know how long your cycle is. Your menstrual cycle is the period from the first bleeding day to the next menstrual bleeding day.

A cycle averages 28 days, but can vary greatly. Teens can experience a cycle of 21-45 days and adult women 21-35 days. In the user manual you will be able to read about which cycle day to start.

You can take the ovulation test in the morning when the urine is most concentrated. If you have just drunk a lot of fluid or it is less than 4 hours since the last toilet visit, the urine may be too thin and the test result uncertain.

Preferably, 24 hours should elapse between each test. However, you can take them at shorter time intervals but never longer intervals. If it goes over 24 hours, you can overlook a positive result.

A positive ovulation test appears as two strokes on the test stick, just as with a pregnancy test.

When you have a positive result, there is no need to use multiple test sticks in the same cycle.

If you have any questions about fertility or the absence of a pregnancy, you are always welcome to contact us at Vitanova.

We're open and ready to help you!

You can discuss treatments or any questions you have with one of our experienced Patient Advisors

If you are ready to start IVF treatment and wish to book your Advanced Scan & Virtual Consultation you can do this easily online.

book appointment