During the beginning of the cycle, the menstrual bleeding, the cervix is normally low and hard and slightly open to allow the blood flow out. It feels like the tip of your nose. I normally don't check it during menstruation, simply because of the mess. After the bleeding stops the cervix remains low and hard and the os - the opening to the uterus - remains closed. This will change the closer to ovulation you approach. The cervix rises up to the top of the vagina and becomes softer and softer. At the height of ovulation the cervix feels more like your lips than your nose and the os are open to allow sperm to enter in. Sometimes the cervix seems to disappear - which, of course, it has simply become so soft it blends in with the vagina walls and rises so high that the finger cannot touch it. This is known as SHOW - soft, high, open and wet.

The time frame for this to happen varies from woman to woman. Each woman is unique and must give herself several cycles to determine when events take place. Sometimes ovulation will start to happen and the cervix will rise and soften and then ovulation will be delayed for some reason. I have noticed that my own cervix seems to see-saw at different points - but in acquainting yourself with all your fertile signs - you learn how to recognize each one of them. 

Once ovulation occurs the cervix drops to low and firm - once again feeling like the tip of your nose-roughly 24-48 hours after ovualation And the os become tightly closed. (The os in a woman who has given birth vaginally will feel more open at all times because of the stretching that occurred at the birth of her baby.)

When pregnancy occurs, the cervix will rise up and become soft, yet the os will remain tightly closed. This occurs at different times in different women. Some women may find that twelve days after ovulation their cervix will do this and is a probable pregnancy sign. Others won't experience this until well after the pregnancy has been confirmed