Hello all...I have a Question about my "period"...

When I got pg with my son I was a week and a half late, I then got a couple of wipes of spotting and then some brown old blood, so I'm aware of implantation bleeding and break thru bleeding.

Fast forward to this month. I thought I ovulated on the 25th but now I'm not sure. I was 5 days late before seeing any "period". I had nausea, sore breasts, sore nipples. Smells made me sick badly. Well...period was due on the 9th. The 13th in the late evening I started lightly spotting. Very light pink. Then on the 14th I had somewhat of a flow for a few hours, and then back to spotting. Woke the 15th and nothing at all. I've had nothing since then. I have cm and very wet feeling. My nipples r still sensitive and kind of sore. Slight nausea twice. Once yesterday and then today. My thighs feel achy also today. Still have weird taste in mouth too like I'm sucking on a penny? I'm 35. Will be 36 in September. Is it possible that I ovulated later and that"period" was implantation or break thru bleeding? I'm very confused. The whole ordeal lasted maybe 24-36 hours total. I've never had a period that lasted less than 4 days and I always have a heavy cycle. I'm just very confused. Thanks for any insight.