12dpo Have this happen to any of you ladies?

OK so ladies I am 12dpo, I started bleeding this morning, so I put on a pad, only spotting on the pad, so when I go to the bathroom and I wipe there is blood, but I'm not bleeding on the pad? I don't know if it's my left ovary or left pelvic but something over there is bothering me. First I thought it was implantation bleeding but some ladies say its to heavy to be implantation. Has this happen to any of you ladies? Did my period just show up 2 days early?