Missed pills, what risk? when to take next pack?

I missed two pills and had breakthrough bleeding, it showed no signs of stopping but wasnt heavy so after a few days i came of my pill packet (with 5 left in pack) so that i would get my period . i have done but it is still light and i want to know when to start my new pill packet. i finished my pack on tuesday which means that my last one should have been today??? thanks Its the combined pill logynon Also how affective will my next pack be?