The same act is also known as an effective preventive measure to diminish to the risk of urinary tract infection incidence. The most common form of arthritis is osteoarthritis. Other common rheumatic diseases include gout, fibromyalgia, and rheumatoid arthritis (RA). A progesterone blood test is done to find out how much of the progesterone hormone is in a sample of blood. This female hormone is produced each time a mature egg is released from an ovary after a process referred to as ovulation. This hormone really helps to prepare the endometrium (uterine lining) to take the egg if sperm fertilizes it. If the egg goes without being fertilized, menstrual bleeding occurs and progesterone levels drop.