Implantation bleeding? Confused! Help!

Hi all
I am 34 TTC #1. Supposed to get my period Wed, 1/13. I had bleeding Sunday, Monday and a little bit today. The strange thing is it's stopping now. My periods have always been 5 days and the past few months I've always had a 30 day cycle so this would mean my period was 4 days early and only lasted 2.5 days (which has never happened). We baby danced on ovulation day so I thought we had a good shot this month. So so confused! Anyone else ever experience anything like this? I'm not sure if this was my period or could maybe just maybe be implantation bleeding? Bleeding was bright red and some brown so I really thought it was my period. Confused!