What Should Your Cervical Mucus Be Like Before A Period Is Due What Should CM Be Like Before Your Period Is Due If You Are Pregnant?

What should CM be like before your period is due if you are pregnant? - what should your cervical mucus be like before a period is due

I am TTC and my period is expected to commence soon. My cervical mucus (CM) is the same as always before my time, not much of it and a little milky / sticky like. CM: What will happen as when you're pregnant? Thanks for the help!