I'm running 2 packs of birth control one after the other, 3 days into pack 2 i'm noticing blood on toilet paper? is this normal, what's happening?

Sometimes: You can some times get away with delaying your period by skipping the placeboes at the end of a package but this does not always work and can result in break through bleeding. It does not work as well at all with the tricyclic pills and works better with the monophasic pills. You do still get protection against pregnancy. Hope this helps.