Does Cervical Mucus change during early pregnancy?

Nikki
I just checked and I saw that my cm was white but almost like dry and a little sticky. This never had happened before. And also before I go to the bathroom ( I know tmi ) I feel a lot wetter. Which also don't happen. I had also some cramps earlier in the week as well. And my friend and my boyfriend family think they saw a line that goes down my stomach, very faint but if you look closer it's there, which I never had before. Can this be signs of early pregnancy? Or can it be all in my head. My AF isn't due until November 12.