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.
Purchase an ovulation test. Sold in drugstores, ovulation testing kits detect the amount of luteinizing hormone (LH) in your urine, which increases one to two days before ovulation. Similar to over-the-counter pregnancy tests, these are digital devices with a testing stick to be held under your urine stream.