This is my first review that I write at all. But I was so overwhelmed by the outcome that I need to know about this test. Have there been a few months tried to get pregnant. But my cycles were so irregular that I could not given ovulation. That is why I ordered the O-test and it worked immediately! At the first time. And the test has ovulation in one day appears to me that I never expected and also the ovulation calendar far off the mark. So I can only recommend this Test! Absolutely reliable and therefore I am now pregnant. :-)