Implantion or early period?? I’m so confused. Anyone else have this?? Tmi

My lmp was on November 10th and I have a usual 30 day cycle and my period wasn’t suppose to start until at least December 9th.. I ovulated on November 25th (temp rise on the 26th confirmed) and I started spotting on dpo 12 (dec 7th) followed by a temp dip on dpo 13 (still didn’t go below my coverline) I feel out because the bleeding has picked up but mixed with a lot of ewcm also seem to have woke with a cold .. 14dpo my temp spiked to 99.34 (maybe fever from cold??) flow has slowed to very light bleeding and by the end of the day it’s only brown-spotting! So I woke up this morning 15dpo my temp was 98.08 (still above my cover line of 97.79) used the bathroom to wipe and have some more dark brown spotting which now is completely gone pretty much. I’m so confused if this is actually a period why didn’t my temp drop below my cover line before I started bleeding and also I have not had any cramping which is really weird cause I usually cramp really bad for the first 2 days of my period and also my period last 5-6 days not 3 days and my veins on my chest are crazy and nips are really strange looking with one protruding vein at the top of the areola (normally do not have this expect with my pregnancy with my son)

Has any other woman experienced this and what was the outcome??