Understanding what an endocrinologist does begins with understanding what the endocrine system is. The endocrine system is a series of glands that produce and secrete hormones that the body uses for a wide range of functions. These control many different bodily functions, including: 1  Respiration.
Most ovulation tests may be used at any time of the day; some suggest testing first thing in the morning, although this is not required. For greater success, test about the same time each day, and reduce your liquid intake for four hours beforehand.
FIRST RESPONSEâ¢ Ovulation Test: 1  Over 99% accurate in laboratory studies in detecting the luteinizing hormone (LH) surge in your urine. 2  Predicts the two days each month when youâre most likely to become pregnant. 3  Easy-to-read results in just minutes.  Each ovulation test kit contains enough sticks for a full week of testing.