Confused

lovemy🌈baby
So I am confused lol. Af isn't due until the 18th (6 more days) and I had one time of using restroom and wiping with a very light pinkish red on the tissue. I wiped 3 times with the color on the tissue. I don't ever remember a time Af came almost a week early. It's usually like a day or two early or late. But never so early. I also don't remember ever having implantation bleeding when getting pregnant (been pregnant 6 times (3 losses)). I looked up online and it said implantation bleeding can be about 6 or so days after ovulation and it's usually like a brownish color. So I don't think it's implantation bleeding. But not sure what to think about it. Has anyone else ever had a totally random spotting happen? I haven't even had sex in the last few days so it wasn't irritation. Just curious. Thanks y'all.