I have been taking a 150/30 monophasic pill for two months now. I was due to finish the 2nd pack yesterday (which I did) meaning that this coming week is w4 and I should be expecting withdrawal bleed. But I have a lot to do this week coming up to Christmas so I have decided to go straight on to the 3rd pack in the hope of skipping the withdrawal bleed. The internet tells me this will work but I am worried about breakthrough bleeding messing up the week instead ???? How likely is it that I will get this ???? And how quickly ?