In about half of the couples who trying to conceive, male infertility plays a role. Male Infertility may be due to low sperm production, low motility, or morphology. There may also be blockages that prevent the delivery of sperm.
Female fertility begins to decline many years prior to menopause despite regular ovulatory cycles. A woman’s fertility peaks in her mid-20’s and drops off more steeply after age 35. There are many different reasons why a woman may not conceive a baby.