Spotting and pregnant

Amanda

I missed two day of birth control without knowing. When I did realize it, I caught back up on the pills. A few days later I started spotting pink and brownish blood. Doesn't even fill a panty liner, but I happens on and off and has been for about 5 days. I've been very crampy, sore boobs, dizzy at time. Could this be implantation bleeding or just from missing the pills, even though I caught up?