I have been on BC for about a yr now but am currently on my week of sugar pills. I have nt had my regulated period, except for a few days before I started sugar pills I had extremely light brown spotting (like a couple of drops on a liner) and this continued for a couple of days. I plan on taking a pregnancy test in the morning but my concern is if the test comes back negative should I start my new pack of BC that I'm supposed to start tomorrow or wait to see if I start my period eventually?