The cervix is the opening of the uterus and it sits at the top of the birth canal/vagina. During pregnancy, it feels like the tip of your nose. During labor it becomes softer, like puckered lips. Eventually it becomes so soft and thins out so much, you can't feel it.
@apryls194 nit sure but im guessing baby pushing down coming down mine so bad at tomes i cant walk or dress myself cant barely lift my legs and belly to big to bend far enough down