Do You Get Cervical Mucus Before Your Period What Is The Diiference Between The Cervical Mucus You Get Before Your Period And The One When You Are Pregnant

What is the diiference between the cervical mucus you get before your period and the one when you are pregnant - do you get cervical mucus before your period

I am TTC and I had my last period, 9 October, and hopes that on or about 9 November. How can I make a difference?