Help?

This morning I woke up expecting AF, since she was due today. I got nothing, I went my usual morning pee and I wiped and there was bright red blood, just a swipe. I was relieved, I got my period or at least I thought?

I haven’t had anything today else since 9am this morning, not even a little tiny bit. I checked my cm, to see what’s going on. It’s just brown, I put a pad on this morning just in case I started and not even a little bit of anything. Looked brand spankin new, I tested today to be sure, negative. I normally get sore boobs 1-2 weeks before af. (The only symptom I get.) and I completely skipped that symptom. what’s going on????