Cervix positions?

AF didn't come today, I believe I have a slight chance of pregnancy right now.. Cervix is between low and high (lower today then the past few days!) hard, and what I feel isn't tightly closed, but not exactly open (more closed than open, just not tightly closed) I don't understand much about my cervical positions, but I'm curious as to what it means right now being low, hard, closed at this point in my cycle?