Post Coital Test
Antibody reactions occur when the immune system mistakes sperm for invading pathogens, such as bacteria, and seeks to destroy them. Antisperm antibodies can be produced by the female, or rarely by the male, and when they are present in the cervical mucus the sperm cannot survive.
The post coital test is used to assess the interaction between the cervical mucus and sperm. The couple has intercourse at home and the female comes to the office two to twelve hours later. A sample of the cervical mucus is examined under the microscope and numerous incapacitated sperm indicate there may be an antigen antibody problem.
Infection
Severe reproductive tract infections (pelvic inflammatory disease- PID) are caused by microorganisms such as Chlamydia, gonorrhea, and others. These infections can seriously damage the tubes, ovaries, uterus and other organs within the pelvic cavity. PID is usually accompanied by pain and vaginal discharge. Cultures are usually taken to rule out the presence of infectious organisms.
Progesterone
Levels of the hormone progesterone rise in association with ovulation. The follicle contains the mature egg and it ruptures when ovulation occurs. The remaining follicular structure is known as the corpus luteum. The corpus luteum secretes progesterone which supports the development of the endometrium.
An Increased progesterone level is one indication that ovulation has occurred. Progesterone is produced by the placenta once pregnancy is established. One week after ovulation the level should be approximately 10 ng/ml.