okay ladies please comment, I need advice!

Okay so to start off af was due today and usually always starts in the early morning of that day. Which it didn't today. I didn't start bleeding till about 12. Well glow said I ovulated dec 27-Jan 1. But af was due today. Even if I conceived on my first day of my fertile window today would only be 13 days after? I am bleeding, but not like my normal period blood. Started out light and pink. Got dark for a few hours and is now back too maybe a dark pink and has some brown discharge. Had some cramping but nothing like my period cramps. Can someone please help!?!? I feel so pregnant! Every sign, I have! What could be going on?