SKU: 240240169372
- Model No.Ovt200-1214. - Most people use ovulation tests to track ovulation so that they know when the best time is to try for a baby. - Some people use ovulation testing as a natural form of contraception so that they know when to avoid sex. It is not a reliable form of contraception. - To determine when to start testing you must first determine the length of your menstrual cycle. - If you are unsure about your cycle length you may begin the test 11 days after the first day of your period as the average cycle length is 28 days. - Perform 1 test each day over 5 days or until the LH surge has been detected.