too much computer exposure can cause fertility problems

doesn't the computer emit some kind of radiation? i don't know if it's just an old wives' tale or whatever you call it, but there have been reports linking women who not able to get pregnant with computer usage. there have beenr reports, too, that pregnant women who are also heavy users of the computer give birth to babies with birth defects. but, maybe it was just coincidence. what are your thoughts on this?