Limits of the test. Certain medical conditions may or may not affect the reliability of this test in predicting ovulation. These can include pregnancy, post-partum, menopause symptoms, breast feeding, birth control pills, some fertility medications and polycystic ovarian syndrome (PCOS). Women with medically diagnosed fertility problems should ask their health care professional if the product is suitable for them. Home ovulation test. For in vitro diagnostic use only. Store at 36° - 86°F (2°-30°C). Keep out of the reach of children. Do not use if the foil wrapper containing the test stick is damaged. Do not use a test stick that has passed its expiration date. Do not reuse the test sticks. Not for contraceptive use. Always read the manufacturers' instructions for any medication that you are taking before doing a test. Certain medical conditions and medications can give misleading results, for example: You are pregnant; you have recently been pregnant; you are breast feeding; you have reached menopause; you have impaired liver or kidney function; you have polycystic ovarian syndrome; you are taking fertility drugs containing luteinizing hormone or human Chorionic Gonadotrophin (such as Pregnyl and Profasi)*; you are taking antibiotics containing tetracyclines; Some fertility treatments such as Clomid** may give misleading High Fertility results. Peak Fertility results should be unaffected.