TTC # 1 -2 days late

Kierstin
Just wondering if anyone has ever experienced this, I haven't texted yet as I don't want to prematurely get my hopes up however 
I am currently in my second day of a late AF, and am having a lot of creamy CM, which I normally do not have just prior to AF. 
additionally, since TTC I have completely cut out coffee and over caffeine when I normally have at least one coffee every morning is it possible that this diet changes can changes AF expected date ?