The level of Luteinizing Hormone (LH) in the blood normally makes a peak 12-48 hours before ovulation. The peak can be detected using an ovulation predictor test and is useful for determining the fertile period of a woman's menstrual cycle. The peak during which the hormone is present in the body usually lasts for 1 day. If the peak is present (positive test) for 6 days, that may suggest prolonged elevation of LH-levels which could be a sign of Poly-cystic ovarian syndrome (PCOS). PCOS prevents ovulation and can develop into an infertility problem. You can consult a gynecologist to determine whether or not you are ovulating right now.