Why aren't we pregnant yet?
The reasons for a couple's infertility can be due to
problems with the reproductive health of the woman, the man,
or both.
It's estimated that causes of fertility problems can
be roughly divided in thirds that way. A small percentage
of patients who seek the underlying problems end up being
diagnosed with unexplained infertility.
Some of the common causes of female infertility include:
Blocked or otherwise damaged fallopian tubes
Ovulation disorders
Hormonal disorders
Structural problems of the uterus
Scar tissue, abdominal or pelvic adhesions
Some of the common causes of male infertility include:
Problems with sperm shape, movement, or amount
Hormonal disorders
Varicocele (varicose vein of the scrotum)
Blockage or other damage to the tubal and duct system that transports sperm
The only way to know for sure if any of the above apply to your situation is to undergo at least some basic evaluative blood tests, a semen analysis, and possibly some more invasive anatomical tests.