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.
A common misconception with ovulation tests is that they tell you specifically when you are ovulating, which sadly isnât true. Ovulation predictor kits actually work by testing for the luteinizing hormone (LH) which is the indicator of your body preparing to release a matured egg.