Implantation bleeding?

Lauri

My period was supposed to start in 5 days as of yesterday so I was surprised when there was frank blood when I wiped. I put in a pad and went to bed, and when I woke up the pad was almost completely clean. Now today when I wiped the blood is scarce and it's brown with some pink mucus-y spots which is what I've read to expect with implantation bleeding. Has anyone else gotten the bright red blood first and it still have been implantation bleeding?