Implantation or period??? Help

Adriena

(Pics are attached in order from yesterday-today)

I have 29-35 cycle, my period last month was from December 25-29th. I had unprotected sex multiple times before and DURING my entire period. I ovulated shortly after that. My period is always 5 days long heavy and bright red from the start it begins. I was expecting my usual period yesterday but woke up to pink spots when I wiped which progressed into dark red clots that look like specks.

I took a test today and it was negative, but today I’ve had nothing but dark brown blood that has gotten lighter throughout the day.

(Last pic from TODAY)

(First picture from yesterday)