Implantation spotting? 7dpo. (TMI)

I went to the bathroom and saw this mix with my discharge. I never had this happen to me it's just alil blood and I wiped nothing came out (also checked for cuts there weren't any). I have light cramps on and off and my back aches alil (lower) today. My man and I had unprotected sex on my fertile week and the day of ovulation. thanks. Is this a possibility that could be implantation

?