Post-Coital Test (PCT): The cervical mucous is evaluated after intercourse prior to ovulation. It has the appropriate physical characteristics, and to determine whether it supports viable, active sperm for a long time or not. The test is done three days before to expected ovulation (11th to 14th day of a regular 28 days cycle).
Antisperm Antibody Testing: If the woman has abnormal post-coital tests, the couple may be evaluated for antisperm antibodies.
Endometrial Biopsy, (EBx): The lining of the uterus is sampled to see if it is being properly prepared for implanation of the embryo. It also reflects function of the corpus luteum. The biopsy is done 11-12 days after ovulation.