TMI-No pic---Question about AF

This may be tmi, but I'm hoping someone can help me with this one. I thought I was getting AF the other day because I noticed a tiny amount of blood when I wiped. But then I notice that my 'AF' was a very watery brown for one day, next day was a watery pink, and the next a watery cream?! I've always had red (thick?) blood for AF, never watery discharge. 
​Anyone experience this? Know of an explanation?