As the days go by she will recognize her patterns of fertility and infertility, according to the mucus patterns. Following menstruation the cervix is occluded with a thick, dense plug of mucus which prevents the passage of sperm cells into the cervix and which also protects the body from infection. The sperm cells which are kept out in the vagina very quickly become incapable of fertilizing the ovum and are destroyed by surrounding cells. The ovaries are quiescent at this stage. There is nothing leaving the cervix and the vulva feels dry.
Nothing is felt and nothing is seen.
Basic Infertile Pattern of dryness. There is no entry of sperm into the cervix because of a thick dense plug of mucus. Following intercourse, the discharge of seminal fluid from the vagina may last for 24 hours and be felt as a wetness at the vulva. This seminal fluid contains no live sperm cells. They will have been destroyed within an hour or two in the vagina when the cervix prevents them from entering the uterus.