CM Change- need help!! No Pic

Y. • Wife & Momma & Business Woman

So I posted yesterday, and cannot find the post.

But anyways, currently 31+3 and noticed yesterday that my CM changed.

Before it has been more EWCM until yesterday. Yesterday and today it has been really thick still white in color. No red-ting or any discoloration.

I have read that this is a usually a sign of losing the mucus plug.

Is this true? Is this normal?