3dpo CM question

Laura • Straight edge, vegetarian, feminist, lover of animals.
Hello ladies! 
​Today I am three DPO, I went to the bathroom today because I felt like it was super wet down there, so I just kinda ran my finger over my vagina and my finger was covered it such thick, white creamy CM, like more than I have ever had before. 
​My questions are:
​1) Can your CM change that quickly if pregnant?
​2) Does your CM change even before it's implanted?
​Sorry if they are kind stupid I'm just curious and hoping it's a good sign!