Back Again - Important [early Period On Bc] Possible?

Hey girls. I just finished my "regular" pills in my packet.. tomorrow im starting on the sugar pills. I have a question on spotting - cause im not too sure about this. I've had light spotting for about 6 days, and yesterday it seemed like it became a real period - it was really heavy.. and its the same today. Is it possible to get your period like 2 days EARLY before you start the sugar pills? Cause i know the pills mess with your system for the first couple months or so. Or is this just heavy spotting? i had cramps lastnight along with when i was spotting, which i heard was normal. Please, let me know! thanks