Affordable ovulation test in larger pack (14 pack). For those who are planning to have children and want to test often or for a longer period. With the RFSU Ovulation Test, you can find out yourself when you are ovulating and have the best chance of getting pregnant. If you are trying to get pregnant it is important to have intercourse during the most fertile days of your menstrual cycle, as there are only a few days in a cycle that a woman can get pregnant. The test shows your 2 most fertile days and tracks the increase in Luteinizing Hormone (LH) in urine at levels above 25mlU/ml. Take the test between 10am and 8pm when the amount of LH hormone in the urine can be read most accurately. You are most fertile on the day the LH surge is detected and the day after. If you have intercourse within these 48 hours, you increase your chances of getting pregnant. Clear result with one or two lines Charts your two most fertile days during a menstrual cycle Simple test stick that you dip into a container of urine. MEASURING THE LH HORMONE There are different ways of finding out if you are ovulating. Measuring hormones is more reliable than the older methods, when you examined your secretions or measured your body temperature. You can measure hormones yourself at home with ovulation tests such as the LH hormone. The hormone begins to increase in quantity one to three days before ovulation. You could call the LH surge a signal to the ovary to release the egg. How quickly the amount of LH in the body goes back varies slightly from woman to woman. LH is excreted from the body in the urine. With the help of a urine dipstick, you can measure the LH hormone in the urine. You should perform the urine test several days in a row, at the same time. You can see how to do it in the instructions found in the packaging. Womens’ health clinics use tests that measure the amount of the corpus luteum hormone in the blood. The samples are taken on day 21 and day 23 of the menstrual cycle and the values must be above a certain level to show that ovulation has occurred.