This is the time from ovulation to menstruation. This time has to be at least 10 days in order for a pregnancy to occur. The cause is low progesterone, and can easily be treated. Fertile quality cervical fluid is important around the time of ovulation. Without it, the sperm will not reach the egg.
Possible causes are hormonal imbalances, such as low estrogen.
Unfortunately for men there are no symptoms of infertility other than impotence. A man usually finds out he's infertile when a semen analysis is performed. My name is Lori Ramsey . My education consists of a diploma in Business Data Processing. I also successfully completed two courses with the Famous Writers School on Basic Writing and Fiction Writing.