Spotting...question!

So AF is due today...no signs, no cramps....but also not really having any pregnancy symptoms. Today I did have a tiny bit of brown spotting after I went #2 (TMI, I know). Also having watery CM the rest of the time. Am I out this month? Trying to stay positive lol has anyone had this as a good sign?? Took a preg test 4 days ago and it was negative 😞 waiting til tomorrow to test again if AF doesn't show. Fingers crossed...hubs and I BD every other day during the fertile window and on the day I had EWCM. Anyone have advice?