Question!!

Nakita • 30 years old, Married Baby 1- June 2015, Baby 2- October 2016, Baby 3- March 2018! Baby 4 October 2019
I have a slow leak in my water which they said is doing okay. But they told me my cervix is extremely anterior and closed. What in the heck does that mean !? Also I am almost 30 weeks thanks so much !!