Period vs Implantation bleeding

Katherine

So my SO and I had unprotected sex on the 7th. I was in the height of my ovulation according to my tracker (unbeknownst to me). I took a plan B within an hour of it happening but read it is ineffective if you’re already ovulating.

My period wasn’t due for a week but I started bleeding today. It’s a lighter flow than my usual and with a brownish hue and also more jelly like than normal. It doesn’t look like the clots I would usually have.

Does this sound like implantation or period to you?