The cervix does change position during
different stages of the cycle. I have
never noticed any difference, but then
again, I never really attempted to check
it either.
"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....After the bleeding stops
the cervix remains low and hard and the
o's - 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 o's 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 suckers - soft, high, open
and wet."
http://w
ww.suite101.com/article.cfm/preconception/
32502
"A combination of charting your basal body
temperature (BBT), cervical mucus and
cervical position and shape will indicate
when the most fertile time of your cycle
is. Cervical change signals general
fluctuations in your estrogen levels and
can be very helpful and fairly reliable in
predicting your fertility."
http://www.pregnancylo
unge.com/cervix.php