Trying to conceive - is this implantation or period trying to start?

I’m currently 11DPO, I had a speck of brownish spotting on 7DPO (tested negative on 8DPO) and then nothing after. Yesterday at 10DPO I tested negative in the morning but in the afternoon I have been spotting a brownish again but not heavy and only really when I wipe and still happening today. I tested this morning and still negative. Is this my period coming or is this implantation