EWCM instead of Period.

So my period was scheduled to start today. I have always had a normal period, it's always on time, I get sore boobs, bloating and cramping a few days before.. the normal period signs! This month I have ZERO of those signs and the past two days I've had tons of EWCM but no period. We've been TTC for 13 months and I've gotten pretty good at tracking my cycle and this has never happened. This month, during ovulation, we were on Vacation with some friends and I forgot to take an opk, but I had the usual EWCM and we BD during that time too. So I don't think I'm ovulating late and I never have before. So, could this be a sign of pregnancy? I really don't want to face another BFN, so I haven't taken a test... yet.. but I will soon if AF doesn't show. Any thoughts? Have you experienced this before?