What does clear sometimes stringy mucous vaginal discharge signify?

Cycle points: The mucus discharge from the vagina can be examined to get an approximate idea of where a woman may be in her cycle with respect to her fertile periods such as ovulation, just before menstruation begins, just after it has stopped. Here is a website that is helpful to explain this a bit more: http://www.Parents.Com/getting-pregnant/ovulation/signs/signs-of-ovulation/.