What Should Cervical Mucus Look Like Just Before A Period What Should Be Your Cervical Position If You've Successfully Conceived?

What should be your cervical position if you've successfully conceived? - what should cervical mucus look like just before a period

I have 3 days late and no time, but I measured, with a HPT this morning with first morning and said negative. I looked at my neck and I feel very weak and soft. What does this mean? What was the position of the cervix from 3 days after cessation of menstruation? Thank you!